20385562038 has 32 divisors (see below), whose sum is σ = 41550908256. Its totient is φ = 6665288448.

The previous prime is 20385562007. The next prime is 20385562111. The reversal of 20385562038 is 83026558302.

It is a super-2 number, since 2×20385562038² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 2155456 + ... + 2164892.

It is an arithmetic number, because the mean of its divisors is an integer number (1298465883).

Almost surely, 2^20385562038 is an apocalyptic number.

20385562038 is an abundant number, since it is smaller than the sum of its proper divisors (21165346218).

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

20385562038 is a wasteful number, since it uses less digits than its factorization.

20385562038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16288.

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 20385562038 in words is "twenty billion, three hundred eighty-five million, five hundred sixty-two thousand, thirty-eight".