164696805631 has 2 divisors, whose sum is σ = 164696805632. Its totient is φ = 164696805630.

The previous prime is 164696805587. The next prime is 164696805659. The reversal of 164696805631 is 136508696461.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164696805631 is a prime.

It is a super-2 number, since 2×164696805631² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164696805331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82348402815 + 82348402816.

It is an arithmetic number, because the mean of its divisors is an integer number (82348402816).

Almost surely, 2^164696805631 is an apocalyptic number.

164696805631 is a deficient number, since it is larger than the sum of its proper divisors (1).

164696805631 is an equidigital number, since it uses as much as digits as its factorization.

164696805631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5598720, while the sum is 55.

The spelling of 164696805631 in words is "one hundred sixty-four billion, six hundred ninety-six million, eight hundred five thousand, six hundred thirty-one".