20164896 has 48 divisors (see below), whose sum is σ = 58816800. Its totient is φ = 6721344.

The previous prime is 20164883. The next prime is 20164901. The reversal of 20164896 is 69846102.

20164896 is a `hidden beast` number, since 2 + 0 + 1 + 648 + 9 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-3 number, since 3×20164896³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 20164896.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10806 + ... + 12533.

It is an arithmetic number, because the mean of its divisors is an integer number (1225350).

Almost surely, 2^20164896 is an apocalyptic number.

It is an amenable number.

20164896 is an abundant number, since it is smaller than the sum of its proper divisors (38651904).

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

20164896 is a wasteful number, since it uses less digits than its factorization.

20164896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23358 (or 23344 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 20164896 is about 4490.5340439640. The cubic root of 20164896 is about 272.1857151531.

The spelling of 20164896 in words is "twenty million, one hundred sixty-four thousand, eight hundred ninety-six".