55769391960 has 64 divisors (see below), whose sum is σ = 167944423680. Its totient is φ = 14815282560.

The previous prime is 55769391913. The next prime is 55769391989. The reversal of 55769391960 is 6919396755.

It is a super-2 number, since 2×55769391960² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 55769391894 and 55769391903.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 851986 + ... + 915105.

It is an arithmetic number, because the mean of its divisors is an integer number (2624131620).

Almost surely, 2^55769391960 is an apocalyptic number.

It is an amenable number.

55769391960 is an abundant number, since it is smaller than the sum of its proper divisors (112175031720).

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

55769391960 is a wasteful number, since it uses less digits than its factorization.

55769391960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1767368 (or 1767364 counting only the distinct ones).

The product of its (nonzero) digits is 13778100, while the sum is 60.

The spelling of 55769391960 in words is "fifty-five billion, seven hundred sixty-nine million, three hundred ninety-one thousand, nine hundred sixty".