16068621 has 16 divisors (see below), whose sum is σ = 22766400. Its totient is φ = 10046208.

The previous prime is 16068599. The next prime is 16068629. The reversal of 16068621 is 12686061.

It is not a de Polignac number, because 16068621 - 2⁵ = 16068589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16068629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25650 + ... + 26268.

It is an arithmetic number, because the mean of its divisors is an integer number (1422900).

Almost surely, 2^16068621 is an apocalyptic number.

It is an amenable number.

16068621 is a deficient number, since it is larger than the sum of its proper divisors (6697779).

16068621 is a wasteful number, since it uses less digits than its factorization.

16068621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1148.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 16068621 is about 4008.5684477130. The cubic root of 16068621 is about 252.3439338818.

The spelling of 16068621 in words is "sixteen million, sixty-eight thousand, six hundred twenty-one".