65556712140 has 24 divisors (see below), whose sum is σ = 183558794160. Its totient is φ = 17481789888.

The previous prime is 65556712129. The next prime is 65556712157. The reversal of 65556712140 is 4121765556.

65556712140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 65556712092 and 65556712101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 546305875 + ... + 546305994.

It is an arithmetic number, because the mean of its divisors is an integer number (7648283090).

Almost surely, 2^65556712140 is an apocalyptic number.

65556712140 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

65556712140 is an abundant number, since it is smaller than the sum of its proper divisors (118002082020).

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

65556712140 is a wasteful number, since it uses less digits than its factorization.

65556712140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092611881 (or 1092611879 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 42.

The spelling of 65556712140 in words is "sixty-five billion, five hundred fifty-six million, seven hundred twelve thousand, one hundred forty".