164156063251 has 2 divisors, whose sum is σ = 164156063252. Its totient is φ = 164156063250.

The previous prime is 164156063213. The next prime is 164156063287. The reversal of 164156063251 is 152360651461.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 164156063251 - 2¹⁷ = 164155932179 is a prime.

It is not a weakly prime, because it can be changed into another prime (164156069251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82078031625 + 82078031626.

It is an arithmetic number, because the mean of its divisors is an integer number (82078031626).

Almost surely, 2^164156063251 is an apocalyptic number.

164156063251 is a deficient number, since it is larger than the sum of its proper divisors (1).

164156063251 is an equidigital number, since it uses as much as digits as its factorization.

164156063251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 164156063251 in words is "one hundred sixty-four billion, one hundred fifty-six million, sixty-three thousand, two hundred fifty-one".