6689934314157 has 16 divisors (see below), whose sum is σ = 8975042334720. Its totient is φ = 4432465452912.

The previous prime is 6689934314111. The next prime is 6689934314201. The reversal of 6689934314157 is 7514134399866.

It is not a de Polignac number, because 6689934314157 - 2⁸ = 6689934313901 is a prime.

It is a super-2 number, since 2×6689934314157² (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 (6689934314257) 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, 8914153 + ... + 9635454.

It is an arithmetic number, because the mean of its divisors is an integer number (560940145920).

Almost surely, 2^{6689934314157} is an apocalyptic number.

It is an amenable number.

6689934314157 is a deficient number, since it is larger than the sum of its proper divisors (2285108020563).

6689934314157 is a wasteful number, since it uses less digits than its factorization.

6689934314157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18550352.

The product of its digits is 117573120, while the sum is 66.

The spelling of 6689934314157 in words is "six trillion, six hundred eighty-nine billion, nine hundred thirty-four million, three hundred fourteen thousand, one hundred fifty-seven".