20164416 has 28 divisors (see below), whose sum is σ = 53352192. Its totient is φ = 6721408.

The previous prime is 20164411. The next prime is 20164421. The reversal of 20164416 is 61446102.

It is an interprime number because it is at equal distance from previous prime (20164411) and next prime (20164421).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20164411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52320 + ... + 52703.

Almost surely, 2^20164416 is an apocalyptic number.

It is an amenable number.

20164416 is an abundant number, since it is smaller than the sum of its proper divisors (33187776).

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

20164416 is a wasteful number, since it uses less digits than its factorization.

20164416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105038 (or 105028 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 20164416 is about 4490.4805978870. The cubic root of 20164416 is about 272.1835554564.

The spelling of 20164416 in words is "twenty million, one hundred sixty-four thousand, four hundred sixteen".