161692976 has 20 divisors (see below), whose sum is σ = 317958072. Its totient is φ = 79639296.

The previous prime is 161692957. The next prime is 161692987. The reversal of 161692976 is 679296161.

It is a super-2 number, since 2×161692976² = 52289236975473152, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 161692976.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74345 + ... + 76488.

Almost surely, 2^161692976 is an apocalyptic number.

161692976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

161692976 is a deficient number, since it is larger than the sum of its proper divisors (156265096).

161692976 is a wasteful number, since it uses less digits than its factorization.

161692976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150908 (or 150902 counting only the distinct ones).

The product of its digits is 244944, while the sum is 47.

The square root of 161692976 is about 12715.8552995856. The cubic root of 161692976 is about 544.7915775718.

The spelling of 161692976 in words is "one hundred sixty-one million, six hundred ninety-two thousand, nine hundred seventy-six".