20770593480 has 480 divisors, whose sum is σ = 86410843200. Its totient is φ = 4381558272.

The previous prime is 20770593479. The next prime is 20770593517. The reversal of 20770593480 is 8439507702.

It is a super-2 number, since 2×20770593480² (a number of 21 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 3830211 + ... + 3835629.

It is an arithmetic number, because the mean of its divisors is an integer number (180022590).

Almost surely, 2^20770593480 is an apocalyptic number.

20770593480 is a gapful number since it is divisible by the number (20) 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 20770593480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43205421600).

20770593480 is an abundant number, since it is smaller than the sum of its proper divisors (65640249720).

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

20770593480 is a wasteful number, since it uses less digits than its factorization.

20770593480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5475 (or 5449 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 20770593480 in words is "twenty billion, seven hundred seventy million, five hundred ninety-three thousand, four hundred eighty".