20955089500 has 48 divisors (see below), whose sum is σ = 45782519328. Its totient is φ = 8378995200.

The previous prime is 20955089483. The next prime is 20955089521. The reversal of 20955089500 is 598055902.

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, 1802707 + ... + 1814293.

It is an arithmetic number, because the mean of its divisors is an integer number (953802486).

Almost surely, 2^20955089500 is an apocalyptic number.

20955089500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20955089500 is an abundant number, since it is smaller than the sum of its proper divisors (24827429828).

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

20955089500 is a wasteful number, since it uses less digits than its factorization.

20955089500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15223 (or 15211 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 43.

The spelling of 20955089500 in words is "twenty billion, nine hundred fifty-five million, eighty-nine thousand, five hundred".