164351216262139 has 2 divisors, whose sum is σ = 164351216262140. Its totient is φ = 164351216262138.

The previous prime is 164351216262127. The next prime is 164351216262199. The reversal of 164351216262139 is 931262612153461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 164351216262139 - 2²¹ = 164351214164987 is a prime.

It is a super-2 number, since 2×164351216262139² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (164351216262119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82175608131069 + 82175608131070.

It is an arithmetic number, because the mean of its divisors is an integer number (82175608131070).

Almost surely, 2^{164351216262139} is an apocalyptic number.

164351216262139 is a deficient number, since it is larger than the sum of its proper divisors (1).

164351216262139 is an equidigital number, since it uses as much as digits as its factorization.

164351216262139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2799360, while the sum is 52.

The spelling of 164351216262139 in words is "one hundred sixty-four trillion, three hundred fifty-one billion, two hundred sixteen million, two hundred sixty-two thousand, one hundred thirty-nine".