6662667136642 has 32 divisors (see below), whose sum is σ = 11569393244160. Its totient is φ = 2847713280720.

The previous prime is 6662667136639. The next prime is 6662667136651. The reversal of 6662667136642 is 2466317662666.

It is a super-2 number, since 2×6662667136642² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111557658 + ... + 111617365.

It is an arithmetic number, because the mean of its divisors is an integer number (361543538880).

Almost surely, 2^{6662667136642} is an apocalyptic number.

6662667136642 is a deficient number, since it is larger than the sum of its proper divisors (4906726107518).

6662667136642 is a wasteful number, since it uses less digits than its factorization.

6662667136642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223175118.

The product of its digits is 94058496, while the sum is 61.

The spelling of 6662667136642 in words is "six trillion, six hundred sixty-two billion, six hundred sixty-seven million, one hundred thirty-six thousand, six hundred forty-two".