168670072 has 16 divisors (see below), whose sum is σ = 316776600. Its totient is φ = 84196320.

The previous prime is 168670069. The next prime is 168670079. The reversal of 168670072 is 270076861.

It is a happy number.

168670072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168670079) 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, 12079 + ... + 21982.

Almost surely, 2^168670072 is an apocalyptic number.

It is an amenable number.

168670072 is a deficient number, since it is larger than the sum of its proper divisors (148106528).

168670072 is a wasteful number, since it uses less digits than its factorization.

168670072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34686 (or 34682 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 168670072 is about 12987.3042622401. The cubic root of 168670072 is about 552.5174644193.

The spelling of 168670072 in words is "one hundred sixty-eight million, six hundred seventy thousand, seventy-two".