6631669632 has 64 divisors (see below), whose sum is σ = 20131862400. Its totient is φ = 1894761984.

The previous prime is 6631669613. The next prime is 6631669657. The reversal of 6631669632 is 2369661366.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1230882 + ... + 1236257.

It is an arithmetic number, because the mean of its divisors is an integer number (314560350).

Almost surely, 2^6631669632 is an apocalyptic number.

It is an amenable number.

6631669632 is an abundant number, since it is smaller than the sum of its proper divisors (13500192768).

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

6631669632 is a wasteful number, since it uses less digits than its factorization.

6631669632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2467163 (or 2467151 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 48.

The square root of 6631669632 is about 81435.0638975620. The cubic root of 6631669632 is about 1878.7729309745.

The spelling of 6631669632 in words is "six billion, six hundred thirty-one million, six hundred sixty-nine thousand, six hundred thirty-two".