161858152927 has 2 divisors, whose sum is σ = 161858152928. Its totient is φ = 161858152926.

The previous prime is 161858152891. The next prime is 161858153027. The reversal of 161858152927 is 729251858161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 161858152927 - 2²³ = 161849764319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161858152327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80929076463 + 80929076464.

It is an arithmetic number, because the mean of its divisors is an integer number (80929076464).

Almost surely, 2^161858152927 is an apocalyptic number.

161858152927 is a deficient number, since it is larger than the sum of its proper divisors (1).

161858152927 is an equidigital number, since it uses as much as digits as its factorization.

161858152927 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2419200, while the sum is 55.

The spelling of 161858152927 in words is "one hundred sixty-one billion, eight hundred fifty-eight million, one hundred fifty-two thousand, nine hundred twenty-seven".