79866105504 has 96 divisors (see below), whose sum is σ = 222260645376. Its totient is φ = 25066920960.

The previous prime is 79866105479. The next prime is 79866105563. The reversal of 79866105504 is 40550166897.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252547 + ... + 472770.

It is an arithmetic number, because the mean of its divisors is an integer number (2315215056).

Almost surely, 2^79866105504 is an apocalyptic number.

79866105504 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is an amenable number.

79866105504 is an abundant number, since it is smaller than the sum of its proper divisors (142394539872).

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

79866105504 is a wasteful number, since it uses less digits than its factorization.

79866105504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725398 (or 725390 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 51.

The spelling of 79866105504 in words is "seventy-nine billion, eight hundred sixty-six million, one hundred five thousand, five hundred four".