161460489979 has 2 divisors, whose sum is σ = 161460489980. Its totient is φ = 161460489978.

The previous prime is 161460489961. The next prime is 161460490021. The reversal of 161460489979 is 979984064161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 161460489979 - 2⁵ = 161460489947 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 161460489979.

It is not a weakly prime, because it can be changed into another prime (161460489919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80730244989 + 80730244990.

It is an arithmetic number, because the mean of its divisors is an integer number (80730244990).

Almost surely, 2^161460489979 is an apocalyptic number.

161460489979 is a deficient number, since it is larger than the sum of its proper divisors (1).

161460489979 is an equidigital number, since it uses as much as digits as its factorization.

161460489979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23514624, while the sum is 64.

The spelling of 161460489979 in words is "one hundred sixty-one billion, four hundred sixty million, four hundred eighty-nine thousand, nine hundred seventy-nine".