70164375991 has 2 divisors, whose sum is σ = 70164375992. Its totient is φ = 70164375990.

The previous prime is 70164375959. The next prime is 70164376021. The reversal of 70164375991 is 19957346107.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70164375991 - 2⁵ = 70164375959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70164375091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35082187995 + 35082187996.

It is an arithmetic number, because the mean of its divisors is an integer number (35082187996).

Almost surely, 2^70164375991 is an apocalyptic number.

70164375991 is a deficient number, since it is larger than the sum of its proper divisors (1).

70164375991 is an equidigital number, since it uses as much as digits as its factorization.

70164375991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1428840, while the sum is 52.

The spelling of 70164375991 in words is "seventy billion, one hundred sixty-four million, three hundred seventy-five thousand, nine hundred ninety-one".