77555116 has 12 divisors (see below), whose sum is σ = 135859360. Its totient is φ = 38738160.

The previous prime is 77555041. The next prime is 77555161. The reversal of 77555116 is 61155577.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5175 + ... + 13486.

Almost surely, 2^77555116 is an apocalyptic number.

It is an amenable number.

77555116 is a deficient number, since it is larger than the sum of its proper divisors (58304244).

77555116 is a wasteful number, since it uses less digits than its factorization.

77555116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19704 (or 19702 counting only the distinct ones).

The product of its digits is 36750, while the sum is 37.

The square root of 77555116 is about 8806.5382529119. The cubic root of 77555116 is about 426.4519951449.

The spelling of 77555116 in words is "seventy-seven million, five hundred fifty-five thousand, one hundred sixteen".