20284012164 has 48 divisors (see below), whose sum is σ = 52213271040. Its totient is φ = 6089007360.

The previous prime is 20284012157. The next prime is 20284012181. The reversal of 20284012164 is 46121048202.

It is a super-2 number, since 2×20284012164² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1579284 + ... + 1592075.

It is an arithmetic number, because the mean of its divisors is an integer number (1087776480).

Almost surely, 2^20284012164 is an apocalyptic number.

It is an amenable number.

20284012164 is an abundant number, since it is smaller than the sum of its proper divisors (31929258876).

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

20284012164 is a wasteful number, since it uses less digits than its factorization.

20284012164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3171420 (or 3171418 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The spelling of 20284012164 in words is "twenty billion, two hundred eighty-four million, twelve thousand, one hundred sixty-four".