6655156564 has 24 divisors (see below), whose sum is σ = 13312978560. Its totient is φ = 2851638816.

The previous prime is 6655156507. The next prime is 6655156567. The reversal of 6655156564 is 4656515566.

It is a super-2 number, since 2×6655156564² = 88582217782704572192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6655156567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137769 + ... + 179695.

It is an arithmetic number, because the mean of its divisors is an integer number (554707440).

Almost surely, 2^6655156564 is an apocalyptic number.

It is an amenable number.

6655156564 is an abundant number, since it is smaller than the sum of its proper divisors (6657821996).

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

6655156564 is a wasteful number, since it uses less digits than its factorization.

6655156564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47607 (or 47605 counting only the distinct ones).

The product of its digits is 3240000, while the sum is 49.

The square root of 6655156564 is about 81579.1429472019. The cubic root of 6655156564 is about 1880.9882916791.

The spelling of 6655156564 in words is "six billion, six hundred fifty-five million, one hundred fifty-six thousand, five hundred sixty-four".