20383155882 has 48 divisors (see below), whose sum is σ = 46567553760. Its totient is φ = 6425757216.

The previous prime is 20383155827. The next prime is 20383155889. The reversal of 20383155882 is 28855138302.

20383155882 is a `hidden beast` number, since 2 + 0 + 38 + 31 + 5 + 588 + 2 = 666.

It is a super-2 number, since 2×20383155882² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20383155889) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 149988 + ... + 251520.

It is an arithmetic number, because the mean of its divisors is an integer number (970157370).

Almost surely, 2^20383155882 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20383155882, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23283776880).

20383155882 is an abundant number, since it is smaller than the sum of its proper divisors (26184397878).

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

20383155882 is a wasteful number, since it uses less digits than its factorization.

20383155882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102147 (or 102144 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The spelling of 20383155882 in words is "twenty billion, three hundred eighty-three million, one hundred fifty-five thousand, eight hundred eighty-two".