136622566931 has 2 divisors, whose sum is σ = 136622566932. Its totient is φ = 136622566930.

The previous prime is 136622566921. The next prime is 136622566937. The reversal of 136622566931 is 139665226631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 136622566931 - 2⁶ = 136622566867 is a prime.

It is a super-2 number, since 2×136622566931² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 136622566931.

It is not a weakly prime, because it can be changed into another prime (136622566937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68311283465 + 68311283466.

It is an arithmetic number, because the mean of its divisors is an integer number (68311283466).

Almost surely, 2^136622566931 is an apocalyptic number.

136622566931 is a deficient number, since it is larger than the sum of its proper divisors (1).

136622566931 is an equidigital number, since it uses as much as digits as its factorization.

136622566931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2099520, while the sum is 50.

The spelling of 136622566931 in words is "one hundred thirty-six billion, six hundred twenty-two million, five hundred sixty-six thousand, nine hundred thirty-one".