20655278050 has 48 divisors (see below), whose sum is σ = 41936190912. Its totient is φ = 7506574400.

The previous prime is 20655277999. The next prime is 20655278051. The reversal of 20655278050 is 5087255602.

It is a super-2 number, since 2×20655278050² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 20655277994 and 20655278012.

It is not an unprimeable number, because it can be changed into a prime (20655278051) 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, 1005684 + ... + 1026016.

It is an arithmetic number, because the mean of its divisors is an integer number (873670644).

Almost surely, 2^20655278050 is an apocalyptic number.

20655278050 is an abundant number, since it is smaller than the sum of its proper divisors (21280912862).

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

20655278050 is a wasteful number, since it uses less digits than its factorization.

20655278050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22203 (or 22198 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 40.

The spelling of 20655278050 in words is "twenty billion, six hundred fifty-five million, two hundred seventy-eight thousand, fifty".