20057588650 has 48 divisors (see below), whose sum is σ = 41645200608. Its totient is φ = 7124040000.

The previous prime is 20057588627. The next prime is 20057588651. The reversal of 20057588650 is 5688575002.

It is a self number, because there is not a number n which added to its sum of digits gives 20057588650.

It is not an unprimeable number, because it can be changed into a prime (20057588651) 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, 400401 + ... + 447700.

It is an arithmetic number, because the mean of its divisors is an integer number (867608346).

Almost surely, 2^20057588650 is an apocalyptic number.

20057588650 is an abundant number, since it is smaller than the sum of its proper divisors (21587611958).

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

20057588650 is a wasteful number, since it uses less digits than its factorization.

20057588650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848167 (or 848162 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 46.

The spelling of 20057588650 in words is "twenty billion, fifty-seven million, five hundred eighty-eight thousand, six hundred fifty".