78601566132 has 48 divisors (see below), whose sum is σ = 205686371520. Its totient is φ = 25955653536.

The previous prime is 78601566119. The next prime is 78601566139. The reversal of 78601566132 is 23166510687.

78601566132 is a `hidden beast` number, since 7 + 8 + 601 + 5 + 6 + 6 + 1 + 32 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78601566139) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3389343 + ... + 3412454.

It is an arithmetic number, because the mean of its divisors is an integer number (4285132740).

Almost surely, 2^78601566132 is an apocalyptic number.

It is an amenable number.

78601566132 is an abundant number, since it is smaller than the sum of its proper divisors (127084805388).

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

78601566132 is a wasteful number, since it uses less digits than its factorization.

78601566132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6801917 (or 6801909 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 78601566132 in words is "seventy-eight billion, six hundred one million, five hundred sixty-six thousand, one hundred thirty-two".