6646563032 has 24 divisors (see below), whose sum is σ = 13238509260. Its totient is φ = 3127793280.

The previous prime is 6646563017. The next prime is 6646563037. The reversal of 6646563032 is 2303656466.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6646563037) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1435094 + ... + 1439717.

Almost surely, 2^6646563032 is an apocalyptic number.

It is an amenable number.

6646563032 is a deficient number, since it is larger than the sum of its proper divisors (6591946228).

6646563032 is a wasteful number, since it uses less digits than its factorization.

6646563032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2874851 (or 2874830 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 41.

The square root of 6646563032 is about 81526.4560250229. The cubic root of 6646563032 is about 1880.1783284892.

The spelling of 6646563032 in words is "six billion, six hundred forty-six million, five hundred sixty-three thousand, thirty-two".