165415672 has 32 divisors (see below), whose sum is σ = 327603600. Its totient is φ = 78084864.

The previous prime is 165415643. The next prime is 165415673. The reversal of 165415672 is 276514561.

It is a happy number.

165415672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×165415672³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165415673) 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, 46468 + ... + 49900.

Almost surely, 2^165415672 is an apocalyptic number.

It is an amenable number.

165415672 is a deficient number, since it is larger than the sum of its proper divisors (162187928).

165415672 is a wasteful number, since it uses less digits than its factorization.

165415672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3775 (or 3771 counting only the distinct ones).

The product of its digits is 50400, while the sum is 37.

The square root of 165415672 is about 12861.4024118678. The cubic root of 165415672 is about 548.9408509350.

The spelling of 165415672 in words is "one hundred sixty-five million, four hundred fifteen thousand, six hundred seventy-two".