164431101358427 has 2 divisors, whose sum is σ = 164431101358428. Its totient is φ = 164431101358426.

The previous prime is 164431101358319. The next prime is 164431101358457. The reversal of 164431101358427 is 724853101134461.

164431101358427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 164431101358427 - 2²² = 164431097164123 is a prime.

It is a super-3 number, since 3×164431101358427³ (a number of 44 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (164431101358457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82215550679213 + 82215550679214.

It is an arithmetic number, because the mean of its divisors is an integer number (82215550679214).

Almost surely, 2^{164431101358427} is an apocalyptic number.

164431101358427 is a deficient number, since it is larger than the sum of its proper divisors (1).

164431101358427 is an equidigital number, since it uses as much as digits as its factorization.

164431101358427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 164431101358427 in words is "one hundred sixty-four trillion, four hundred thirty-one billion, one hundred one million, three hundred fifty-eight thousand, four hundred twenty-seven".