161606524 has 12 divisors (see below), whose sum is σ = 286686064. Its totient is φ = 79696224.

The previous prime is 161606519. The next prime is 161606527. The reversal of 161606524 is 425606161.

It is a super-2 number, since 2×161606524² = 52233337198725152, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161606527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276432 + ... + 277015.

Almost surely, 2^161606524 is an apocalyptic number.

It is an amenable number.

161606524 is a deficient number, since it is larger than the sum of its proper divisors (125079540).

161606524 is a wasteful number, since it uses less digits than its factorization.

161606524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553524 (or 553522 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 161606524 is about 12712.4554669820. The cubic root of 161606524 is about 544.6944661221.

The spelling of 161606524 in words is "one hundred sixty-one million, six hundred six thousand, five hundred twenty-four".