865055103680 has 28 divisors (see below), whose sum is σ = 2059912466400. Its totient is φ = 346022041344.

The previous prime is 865055103673. The next prime is 865055103691. The reversal of 865055103680 is 86301550568.

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, 1351648280 + ... + 1351648919.

Almost surely, 2^865055103680 is an apocalyptic number.

865055103680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

865055103680 is an abundant number, since it is smaller than the sum of its proper divisors (1194857362720).

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

865055103680 is a wasteful number, since it uses less digits than its factorization.

865055103680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2703297216 (or 2703297206 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 47.

The spelling of 865055103680 in words is "eight hundred sixty-five billion, fifty-five million, one hundred three thousand, six hundred eighty".