56746646648 has 16 divisors (see below), whose sum is σ = 106642338000. Its totient is φ = 28308689856.

The previous prime is 56746646623. The next prime is 56746646653. The reversal of 56746646648 is 84664664765.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 8075453 + ... + 8082476.

It is an arithmetic number, because the mean of its divisors is an integer number (6665146125).

Almost surely, 2^56746646648 is an apocalyptic number.

It is an amenable number.

56746646648 is a deficient number, since it is larger than the sum of its proper divisors (49895691352).

56746646648 is a wasteful number, since it uses less digits than its factorization.

56746646648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16158374 (or 16158370 counting only the distinct ones).

The product of its digits is 139345920, while the sum is 62.

The spelling of 56746646648 in words is "fifty-six billion, seven hundred forty-six million, six hundred forty-six thousand, six hundred forty-eight".