16499964 has 24 divisors (see below), whose sum is σ = 41461840. Its totient is φ = 5076864.

The previous prime is 16499963. The next prime is 16500007. The reversal of 16499964 is 46999461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16499963) 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, 52729 + ... + 53040.

Almost surely, 2^16499964 is an apocalyptic number.

It is an amenable number.

16499964 is an abundant number, since it is smaller than the sum of its proper divisors (24961876).

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

16499964 is a wasteful number, since it uses less digits than its factorization.

16499964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105789 (or 105787 counting only the distinct ones).

The product of its digits is 419904, while the sum is 48.

The square root of 16499964 is about 4062.0147710219. The cubic root of 16499964 is about 254.5819833322.

It can be divided in two parts, 164 and 99964, that added together give a triangular number (100128 = T₄₄₇).

The spelling of 16499964 in words is "sixteen million, four hundred ninety-nine thousand, nine hundred sixty-four".