6696437072166 has 32 divisors (see below), whose sum is σ = 14918454874080. Its totient is φ = 2226523150368.

The previous prime is 6696437072161. The next prime is 6696437072177. The reversal of 6696437072166 is 6612707346966.

It is a super-2 number, since 2×6696437072166² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6696437072161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156160041 + ... + 156202916.

It is an arithmetic number, because the mean of its divisors is an integer number (466201714815).

Almost surely, 2^{6696437072166} is an apocalyptic number.

6696437072166 is an abundant number, since it is smaller than the sum of its proper divisors (8222017801914).

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

6696437072166 is a wasteful number, since it uses less digits than its factorization.

6696437072166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312363365 (or 312363359 counting only the distinct ones).

The product of its (nonzero) digits is 82301184, while the sum is 63.

The spelling of 6696437072166 in words is "six trillion, six hundred ninety-six billion, four hundred thirty-seven million, seventy-two thousand, one hundred sixty-six".