161536332 has 12 divisors (see below), whose sum is σ = 376918136. Its totient is φ = 53845440.

The previous prime is 161536307. The next prime is 161536367. The reversal of 161536332 is 233635161.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 161536332.

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, 6730669 + ... + 6730692.

Almost surely, 2^161536332 is an apocalyptic number.

161536332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

161536332 is an abundant number, since it is smaller than the sum of its proper divisors (215381804).

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

161536332 is a wasteful number, since it uses less digits than its factorization.

161536332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13461368 (or 13461366 counting only the distinct ones).

The product of its digits is 9720, while the sum is 30.

The square root of 161536332 is about 12709.6944101737. The cubic root of 161536332 is about 544.6155940367.

The spelling of 161536332 in words is "one hundred sixty-one million, five hundred thirty-six thousand, three hundred thirty-two".