312655646064 has 40 divisors (see below), whose sum is σ = 855205151760. Its totient is φ = 98088045568.

The previous prime is 312655646063. The next prime is 312655646117. The reversal of 312655646064 is 460646556213.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312655646063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191577399 + ... + 191579030.

It is an arithmetic number, because the mean of its divisors is an integer number (21380128794).

Almost surely, 2^312655646064 is an apocalyptic number.

312655646064 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

312655646064 is an abundant number, since it is smaller than the sum of its proper divisors (542549505696).

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

312655646064 is a wasteful number, since it uses less digits than its factorization.

312655646064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383156457 (or 383156451 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 48.

The spelling of 312655646064 in words is "three hundred twelve billion, six hundred fifty-five million, six hundred forty-six thousand, sixty-four".