16164436 has 6 divisors (see below), whose sum is σ = 28287770. Its totient is φ = 8082216.

The previous prime is 16164409. The next prime is 16164457. The reversal of 16164436 is 63446161.

It can be written as a sum of positive squares in only one way, i.e., 12531600 + 3632836 = 3540^2 + 1906^2 .

It is a super-2 number, since 2×16164436² = 522577982396192, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16164398 and 16164407.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2020551 + ... + 2020558.

Almost surely, 2^16164436 is an apocalyptic number.

It is an amenable number.

16164436 is a deficient number, since it is larger than the sum of its proper divisors (12123334).

16164436 is a wasteful number, since it uses less digits than its factorization.

16164436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4041113 (or 4041111 counting only the distinct ones).

The product of its digits is 10368, while the sum is 31.

The square root of 16164436 is about 4020.5019587111. The cubic root of 16164436 is about 252.8445044290.

The spelling of 16164436 in words is "sixteen million, one hundred sixty-four thousand, four hundred thirty-six".