77655564310160 has 80 divisors (see below), whose sum is σ = 181196530971456. Its totient is φ = 30950920917504.

The previous prime is 77655564310141. The next prime is 77655564310183. The reversal of 77655564310160 is 6101346555677.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 77655564310096 and 77655564310105.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74810054 + ... + 75840986.

Almost surely, 2^{77655564310160} is an apocalyptic number.

It is an amenable number.

77655564310160 is an abundant number, since it is smaller than the sum of its proper divisors (103540966661296).

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

77655564310160 is a wasteful number, since it uses less digits than its factorization.

77655564310160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034320 (or 1034314 counting only the distinct ones).

The product of its (nonzero) digits is 15876000, while the sum is 56.

The spelling of 77655564310160 in words is "seventy-seven trillion, six hundred fifty-five billion, five hundred sixty-four million, three hundred ten thousand, one hundred sixty".