20384180364 has 24 divisors (see below), whose sum is σ = 47650055488. Its totient is φ = 6782302800.

The previous prime is 20384180347. The next prime is 20384180387. The reversal of 20384180364 is 46308148302.

It is a happy number.

It is a super-2 number, since 2×20384180364² (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 7 ways as a sum of consecutive naturals, for example, 1546162 + ... + 1559289.

Almost surely, 2^20384180364 is an apocalyptic number.

It is an amenable number.

20384180364 is an abundant number, since it is smaller than the sum of its proper divisors (27265875124).

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

20384180364 is a wasteful number, since it uses less digits than its factorization.

20384180364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3106005 (or 3106003 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The spelling of 20384180364 in words is "twenty billion, three hundred eighty-four million, one hundred eighty thousand, three hundred sixty-four".