164515035931 has 2 divisors, whose sum is σ = 164515035932. Its totient is φ = 164515035930.

The previous prime is 164515035913. The next prime is 164515035941. The reversal of 164515035931 is 139530515461.

Together with previous prime (164515035913) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (139530515461) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164515035931 is a prime.

It is a super-2 number, since 2×164515035931² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (164515035941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82257517965 + 82257517966.

It is an arithmetic number, because the mean of its divisors is an integer number (82257517966).

Almost surely, 2^164515035931 is an apocalyptic number.

164515035931 is a deficient number, since it is larger than the sum of its proper divisors (1).

164515035931 is an equidigital number, since it uses as much as digits as its factorization.

164515035931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 243000, while the sum is 43.

The spelling of 164515035931 in words is "one hundred sixty-four billion, five hundred fifteen million, thirty-five thousand, nine hundred thirty-one".