20375164 has 6 divisors (see below), whose sum is σ = 35656544. Its totient is φ = 10187580.

The previous prime is 20375101. The next prime is 20375167. The reversal of 20375164 is 46157302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20375167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2546892 + ... + 2546899.

Almost surely, 2^20375164 is an apocalyptic number.

It is an amenable number.

20375164 is a deficient number, since it is larger than the sum of its proper divisors (15281380).

20375164 is a wasteful number, since it uses less digits than its factorization.

20375164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5093795 (or 5093793 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 20375164 is about 4513.8856875202. The cubic root of 20375164 is about 273.1285113712.

The spelling of 20375164 in words is "twenty million, three hundred seventy-five thousand, one hundred sixty-four".