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80601297056 = 25717712411237
BaseRepresentation
bin100101100010000110…
…1100011000010100000
321201001020120010111022
41023010031203002200
52310032413001211
6101005553305012
75552242502150
oct1130415430240
9251036503438
1080601297056
11312013704a5
1213755265168
1377a6895ba7
143c8897c760
15216b195bdb
hex12c43630a0

80601297056 has 192 divisors, whose sum is σ = 195691313664. Its totient is φ = 31894732800.

The previous prime is 80601297047. The next prime is 80601297103. The reversal of 80601297056 is 65079210608.

It is a junction number, because it is equal to n+sod(n) for n = 80601296998 and 80601297016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65158070 + ... + 65159306.

It is an arithmetic number, because the mean of its divisors is an integer number (1019225592).

Almost surely, 280601297056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80601297056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97845656832).

80601297056 is an abundant number, since it is smaller than the sum of its proper divisors (115090016608).

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

80601297056 is a wasteful number, since it uses less digits than its factorization.

80601297056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1583 (or 1575 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 44.

The spelling of 80601297056 in words is "eighty billion, six hundred one million, two hundred ninety-seven thousand, fifty-six".