161670704 has 40 divisors (see below), whose sum is σ = 348227712. Its totient is φ = 72207360.

The previous prime is 161670623. The next prime is 161670709. The reversal of 161670704 is 407076161.

It is a happy number.

It is a super-2 number, since 2×161670704² = 52274833063711232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (161670709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6089 + ... + 18984.

Almost surely, 2^161670704 is an apocalyptic number.

It is an amenable number.

161670704 is an abundant number, since it is smaller than the sum of its proper divisors (186557008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161670704 is a wasteful number, since it uses less digits than its factorization.

161670704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25125 (or 25119 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 161670704 is about 12714.9795123704. The cubic root of 161670704 is about 544.7665627661.

The spelling of 161670704 in words is "one hundred sixty-one million, six hundred seventy thousand, seven hundred four".