53966464647856 has 80 divisors (see below), whose sum is σ = 115032267151200. Its totient is φ = 24427127660544.

The previous prime is 53966464647817. The next prime is 53966464647859. The reversal of 53966464647856 is 65874646466935.

It is not an unprimeable number, because it can be changed into a prime (53966464647859) 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 15 ways as a sum of consecutive naturals, for example, 30698575 + ... + 32408878.

It is an arithmetic number, because the mean of its divisors is an integer number (1437903339390).

Almost surely, 2^{53966464647856} is an apocalyptic number.

It is an amenable number.

53966464647856 is an abundant number, since it is smaller than the sum of its proper divisors (61065802503344).

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

53966464647856 is a wasteful number, since it uses less digits than its factorization.

53966464647856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63107606 (or 63107600 counting only the distinct ones).

The product of its digits is 18811699200, while the sum is 79.

The spelling of 53966464647856 in words is "fifty-three trillion, nine hundred sixty-six billion, four hundred sixty-four million, six hundred forty-seven thousand, eight hundred fifty-six".