161796652 has 6 divisors (see below), whose sum is σ = 283144148. Its totient is φ = 80898324.

The previous prime is 161796643. The next prime is 161796653. The reversal of 161796652 is 256697161.

It is a junction number, because it is equal to n+sod(n) for n = 161796599 and 161796608.

It is not an unprimeable number, because it can be changed into a prime (161796653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20224578 + ... + 20224585.

Almost surely, 2^161796652 is an apocalyptic number.

It is an amenable number.

161796652 is a deficient number, since it is larger than the sum of its proper divisors (121347496).

161796652 is a wasteful number, since it uses less digits than its factorization.

161796652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40449167 (or 40449165 counting only the distinct ones).

The product of its digits is 136080, while the sum is 43.

The square root of 161796652 is about 12719.9312891226. The cubic root of 161796652 is about 544.9079910888.

The spelling of 161796652 in words is "one hundred sixty-one million, seven hundred ninety-six thousand, six hundred fifty-two".