77033255817816 has 64 divisors (see below), whose sum is σ = 219764543647200. Its totient is φ = 24983758641024.

The previous prime is 77033255817773. The next prime is 77033255817823. The reversal of 77033255817816 is 61871855233077.

77033255817816 is a `hidden beast` number, since 7 + 7 + 0 + 3 + 3 + 2 + 558 + 1 + 78 + 1 + 6 = 666.

It is a super-2 number, since 2×77033255817816² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4819389895 + ... + 4819405878.

Almost surely, 2^{77033255817816} is an apocalyptic number.

It is an amenable number.

77033255817816 is an abundant number, since it is smaller than the sum of its proper divisors (142731287829384).

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

77033255817816 is a wasteful number, since it uses less digits than its factorization.

77033255817816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9638795825 (or 9638795815 counting only the distinct ones).

The product of its (nonzero) digits is 59270400, while the sum is 63.

The spelling of 77033255817816 in words is "seventy-seven trillion, thirty-three billion, two hundred fifty-five million, eight hundred seventeen thousand, eight hundred sixteen".