161767882984 has 16 divisors (see below), whose sum is σ = 303321852900. Its totient is φ = 80882055552.

The previous prime is 161767882973. The next prime is 161767882993. The reversal of 161767882984 is 489288767161.

It can be written as a sum of positive squares in 2 ways, for example, as 158475648100 + 3292234884 = 398090^2 + 57378^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169852 + ... + 593620.

Almost surely, 2^161767882984 is an apocalyptic number.

It is an amenable number.

161767882984 is a deficient number, since it is larger than the sum of its proper divisors (141553969916).

161767882984 is a wasteful number, since it uses less digits than its factorization.

161767882984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471492 (or 471488 counting only the distinct ones).

The product of its digits is 65028096, while the sum is 67.

The spelling of 161767882984 in words is "one hundred sixty-one billion, seven hundred sixty-seven million, eight hundred eighty-two thousand, nine hundred eighty-four".