161512928957959 has 2 divisors, whose sum is σ = 161512928957960. Its totient is φ = 161512928957958.

The previous prime is 161512928957951. The next prime is 161512928957969. The reversal of 161512928957959 is 959759829215161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 161512928957959 - 2³ = 161512928957951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161512928957951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80756464478979 + 80756464478980.

It is an arithmetic number, because the mean of its divisors is an integer number (80756464478980).

Almost surely, 2^{161512928957959} is an apocalyptic number.

161512928957959 is a deficient number, since it is larger than the sum of its proper divisors (1).

161512928957959 is an equidigital number, since it uses as much as digits as its factorization.

161512928957959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1102248000, while the sum is 79.

The spelling of 161512928957959 in words is "one hundred sixty-one trillion, five hundred twelve billion, nine hundred twenty-eight million, nine hundred fifty-seven thousand, nine hundred fifty-nine".