6636736132 has 36 divisors (see below), whose sum is σ = 12625684596. Its totient is φ = 3051110400.

The previous prime is 6636736129. The next prime is 6636736151. The reversal of 6636736132 is 2316376366.

It can be written as a sum of positive squares in 6 ways, for example, as 91278916 + 6545457216 = 9554^2 + 80904^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 154632 + ... + 192832.

It is an arithmetic number, because the mean of its divisors is an integer number (350713461).

Almost surely, 2^6636736132 is an apocalyptic number.

It is an amenable number.

6636736132 is a deficient number, since it is larger than the sum of its proper divisors (5988948464).

6636736132 is a wasteful number, since it uses less digits than its factorization.

6636736132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38488 (or 38473 counting only the distinct ones).

The product of its digits is 489888, while the sum is 43.

The square root of 6636736132 is about 81466.1655658348. The cubic root of 6636736132 is about 1879.2512609947.

The spelling of 6636736132 in words is "six billion, six hundred thirty-six million, seven hundred thirty-six thousand, one hundred thirty-two".