161567332 has 12 divisors (see below), whose sum is σ = 283010560. Its totient is φ = 80707176.

The previous prime is 161567309. The next prime is 161567353. The reversal of 161567332 is 233765161.

It is a super-2 number, since 2×161567332² = 52208005539196448, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14232 + ... + 22927.

Almost surely, 2^161567332 is an apocalyptic number.

It is an amenable number.

161567332 is a deficient number, since it is larger than the sum of its proper divisors (121443228).

161567332 is a wasteful number, since it uses less digits than its factorization.

161567332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38250 (or 38248 counting only the distinct ones).

The product of its digits is 22680, while the sum is 34.

The square root of 161567332 is about 12710.9138931864. The cubic root of 161567332 is about 544.6504303762.

The spelling of 161567332 in words is "one hundred sixty-one million, five hundred sixty-seven thousand, three hundred thirty-two".