161582849982 has 12 divisors (see below), whose sum is σ = 350096175000. Its totient is φ = 53860949988.

The previous prime is 161582849947. The next prime is 161582849999. The reversal of 161582849982 is 289948285161.

161582849982 is a `hidden beast` number, since 1 + 6 + 1 + 582 + 8 + 49 + 9 + 8 + 2 = 666.

It is a super-2 number, since 2×161582849982² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4488412482 + ... + 4488412517.

It is an arithmetic number, because the mean of its divisors is an integer number (29174681250).

Almost surely, 2^161582849982 is an apocalyptic number.

161582849982 is an abundant number, since it is smaller than the sum of its proper divisors (188513325018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161582849982 is a wasteful number, since it uses less digits than its factorization.

161582849982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8976825007 (or 8976825004 counting only the distinct ones).

The product of its digits is 19906560, while the sum is 63.

The spelling of 161582849982 in words is "one hundred sixty-one billion, five hundred eighty-two million, eight hundred forty-nine thousand, nine hundred eighty-two".