6636639344462 has 16 divisors (see below), whose sum is σ = 10166045702400. Its totient is φ = 3248428094520.

The previous prime is 6636639344459. The next prime is 6636639344477. The reversal of 6636639344462 is 2644439366366.

It is a super-2 number, since 2×6636639344462² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6636639344395 and 6636639344404.

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, 117634364 + ... + 117690767.

It is an arithmetic number, because the mean of its divisors is an integer number (635377856400).

Almost surely, 2^{6636639344462} is an apocalyptic number.

6636639344462 is a deficient number, since it is larger than the sum of its proper divisors (3529406357938).

6636639344462 is a wasteful number, since it uses less digits than its factorization.

6636639344462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235325431.

The product of its digits is 241864704, while the sum is 62.

The spelling of 6636639344462 in words is "six trillion, six hundred thirty-six billion, six hundred thirty-nine million, three hundred forty-four thousand, four hundred sixty-two".