161966352 has 40 divisors (see below), whose sum is σ = 419437440. Its totient is φ = 53856640.

The previous prime is 161966347. The next prime is 161966401. The reversal of 161966352 is 253669161.

It is a hoax number, since the sum of its digits (39) 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 161966352.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16774 + ... + 24602.

It is an arithmetic number, because the mean of its divisors is an integer number (10485936).

Almost surely, 2^161966352 is an apocalyptic number.

161966352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

161966352 is an abundant number, since it is smaller than the sum of its proper divisors (257471088).

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

161966352 is a wasteful number, since it uses less digits than its factorization.

161966352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8271 (or 8265 counting only the distinct ones).

The product of its digits is 58320, while the sum is 39.

The square root of 161966352 is about 12726.6001744378. The cubic root of 161966352 is about 545.0984329685.

The spelling of 161966352 in words is "one hundred sixty-one million, nine hundred sixty-six thousand, three hundred fifty-two".