20259962220 has 48 divisors (see below), whose sum is σ = 58111508448. Its totient is φ = 5270883840.

The previous prime is 20259962209. The next prime is 20259962237. The reversal of 20259962220 is 2226995202.

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, 4115419 + ... + 4120338.

It is an arithmetic number, because the mean of its divisors is an integer number (1210656426).

Almost surely, 2^20259962220 is an apocalyptic number.

20259962220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20259962220 is an abundant number, since it is smaller than the sum of its proper divisors (37851546228).

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

20259962220 is a wasteful number, since it uses less digits than its factorization.

20259962220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8235810 (or 8235808 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The spelling of 20259962220 in words is "twenty billion, two hundred fifty-nine million, nine hundred sixty-two thousand, two hundred twenty".