16164872 has 8 divisors (see below), whose sum is σ = 30309150. Its totient is φ = 8082432.

The previous prime is 16164871. The next prime is 16164887. The reversal of 16164872 is 27846161.

It can be written as a sum of positive squares in only one way, i.e., 15888196 + 276676 = 3986^2 + 526^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×16164872² = 522606173552768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16164871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010297 + ... + 1010312.

Almost surely, 2^16164872 is an apocalyptic number.

It is an amenable number.

16164872 is a deficient number, since it is larger than the sum of its proper divisors (14144278).

16164872 is a wasteful number, since it uses less digits than its factorization.

16164872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2020615 (or 2020611 counting only the distinct ones).

The product of its digits is 16128, while the sum is 35.

The square root of 16164872 is about 4020.5561804308. The cubic root of 16164872 is about 252.8467777162.

The spelling of 16164872 in words is "sixteen million, one hundred sixty-four thousand, eight hundred seventy-two".