54646661564 has 48 divisors (see below), whose sum is σ = 107137894752. Its totient is φ = 24172800000.

The previous prime is 54646661557. The next prime is 54646661591. The reversal of 54646661564 is 46516664645.

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 15 ways as a sum of consecutive naturals, for example, 685634 + ... + 761174.

It is an arithmetic number, because the mean of its divisors is an integer number (2232039474).

Almost surely, 2^54646661564 is an apocalyptic number.

It is an amenable number.

54646661564 is a deficient number, since it is larger than the sum of its proper divisors (52491233188).

54646661564 is a wasteful number, since it uses less digits than its factorization.

54646661564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75998 (or 75996 counting only the distinct ones).

The product of its digits is 12441600, while the sum is 53.

The spelling of 54646661564 in words is "fifty-four billion, six hundred forty-six million, six hundred sixty-one thousand, five hundred sixty-four".