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80566404480 = 27325173233347
BaseRepresentation
bin100101100001000100…
…0011100010110000000
321200221210220101212200
41023002020130112000
52304444444420410
6101002305353200
75551340065422
oct1130210342600
9250853811780
1080566404480
11311936a9161
1213745638800
13779c599cb3
143c84098812
1521680a23c0
hex12c221c580

80566404480 has 384 divisors, whose sum is σ = 281824751520. Its totient is φ = 21207220224.

The previous prime is 80566404449. The next prime is 80566404487. The reversal of 80566404480 is 8440466508.

80566404480 is a `hidden beast` number, since 8 + 0 + 566 + 4 + 0 + 4 + 4 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80566404487) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 232179667 + ... + 232180013.

Almost surely, 280566404480 is an apocalyptic number.

80566404480 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80566404480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140912375760).

80566404480 is an abundant number, since it is smaller than the sum of its proper divisors (201258347040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80566404480 is a wasteful number, since it uses less digits than its factorization.

80566404480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778 (or 763 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 45.

The spelling of 80566404480 in words is "eighty billion, five hundred sixty-six million, four hundred four thousand, four hundred eighty".