77988620160 has 192 divisors, whose sum is σ = 293786915760. Its totient is φ = 18906316800.

The previous prime is 77988620119. The next prime is 77988620197. The reversal of 77988620160 is 6102688977.

77988620160 is a `hidden beast` number, since 7 + 7 + 9 + 8 + 8 + 620 + 1 + 6 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a junction number, because it is equal to n+sod(n) for n = 77988620097 and 77988620106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 552081 + ... + 678800.

Almost surely, 2^77988620160 is an apocalyptic number.

It is an amenable number.

77988620160 is an abundant number, since it is smaller than the sum of its proper divisors (215798295600).

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

77988620160 is a wasteful number, since it uses less digits than its factorization.

77988620160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1230917 (or 1230902 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 54.

The spelling of 77988620160 in words is "seventy-seven billion, nine hundred eighty-eight million, six hundred twenty thousand, one hundred sixty".