161670196 has 24 divisors (see below), whose sum is σ = 293844320. Its totient is φ = 77771232.

The previous prime is 161670137. The next prime is 161670203. The reversal of 161670196 is 691076161.

It is a super-2 number, since 2×161670196² = 52274504549356832, which contains 22 as substring.

It is a congruent number.

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, 4510 + ... + 18538.

Almost surely, 2^161670196 is an apocalyptic number.

It is an amenable number.

161670196 is a deficient number, since it is larger than the sum of its proper divisors (132174124).

161670196 is a wasteful number, since it uses less digits than its factorization.

161670196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14143 (or 14141 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 161670196 is about 12714.9595359167. The cubic root of 161670196 is about 544.7659921789.

The spelling of 161670196 in words is "one hundred sixty-one million, six hundred seventy thousand, one hundred ninety-six".