6664505554 has 8 divisors (see below), whose sum is σ = 11424866688. Its totient is φ = 2856216660.

The previous prime is 6664505459. The next prime is 6664505567. The reversal of 6664505554 is 4555054666.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238018042 + ... + 238018069.

It is an arithmetic number, because the mean of its divisors is an integer number (1428108336).

Almost surely, 2^6664505554 is an apocalyptic number.

6664505554 is a deficient number, since it is larger than the sum of its proper divisors (4760361134).

6664505554 is a wasteful number, since it uses less digits than its factorization.

6664505554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476036120.

The product of its (nonzero) digits is 2160000, while the sum is 46.

The square root of 6664505554 is about 81636.4229618128. The cubic root of 6664505554 is about 1881.8686672948.

The spelling of 6664505554 in words is "six billion, six hundred sixty-four million, five hundred five thousand, five hundred fifty-four".