161982652 has 48 divisors (see below), whose sum is σ = 320850432. Its totient is φ = 70994880.

The previous prime is 161982637. The next prime is 161982673. The reversal of 161982652 is 256289161.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199327 + ... + 200137.

It is an arithmetic number, because the mean of its divisors is an integer number (6684384).

Almost surely, 2^161982652 is an apocalyptic number.

It is an amenable number.

161982652 is a deficient number, since it is larger than the sum of its proper divisors (158867780).

161982652 is a wasteful number, since it uses less digits than its factorization.

161982652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018 (or 1016 counting only the distinct ones).

The product of its digits is 51840, while the sum is 40.

The square root of 161982652 is about 12727.2405493100. The cubic root of 161982652 is about 545.1167182612.

The spelling of 161982652 in words is "one hundred sixty-one million, nine hundred eighty-two thousand, six hundred fifty-two".