5664561553512 has 64 divisors (see below), whose sum is σ = 15735191313600. Its totient is φ = 1888151411520.

The previous prime is 5664561553501. The next prime is 5664561553591. The reversal of 5664561553512 is 2153551654665.

5664561553512 is a `hidden beast` number, since 5 + 6 + 6 + 4 + 5 + 615 + 5 + 3 + 5 + 12 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 12749587 + ... + 13186397.

It is an arithmetic number, because the mean of its divisors is an integer number (245862364275).

Almost surely, 2^{5664561553512} is an apocalyptic number.

It is an amenable number.

5664561553512 is an abundant number, since it is smaller than the sum of its proper divisors (10070629760088).

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

5664561553512 is a wasteful number, since it uses less digits than its factorization.

5664561553512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496863 (or 496853 counting only the distinct ones).

The product of its digits is 16200000, while the sum is 54.

The spelling of 5664561553512 in words is "five trillion, six hundred sixty-four billion, five hundred sixty-one million, five hundred fifty-three thousand, five hundred twelve".