164215863967 has 2 divisors, whose sum is σ = 164215863968. Its totient is φ = 164215863966.

The previous prime is 164215863961. The next prime is 164215863997. The reversal of 164215863967 is 769368512461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 164215863967 - 2⁷ = 164215863839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164215863961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82107931983 + 82107931984.

It is an arithmetic number, because the mean of its divisors is an integer number (82107931984).

Almost surely, 2^164215863967 is an apocalyptic number.

164215863967 is a deficient number, since it is larger than the sum of its proper divisors (1).

164215863967 is an equidigital number, since it uses as much as digits as its factorization.

164215863967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13063680, while the sum is 58.

The spelling of 164215863967 in words is "one hundred sixty-four billion, two hundred fifteen million, eight hundred sixty-three thousand, nine hundred sixty-seven".