20953850522 has 64 divisors (see below), whose sum is σ = 37507276800. Its totient is φ = 8673480000.

The previous prime is 20953850521. The next prime is 20953850543. The reversal of 20953850522 is 22505835902.

It is a self number, because there is not a number n which added to its sum of digits gives 20953850522.

It is not an unprimeable number, because it can be changed into a prime (20953850521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1951304 + ... + 1962012.

It is an arithmetic number, because the mean of its divisors is an integer number (586051200).

Almost surely, 2^20953850522 is an apocalyptic number.

20953850522 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20953850522 is a deficient number, since it is larger than the sum of its proper divisors (16553426278).

20953850522 is a wasteful number, since it uses less digits than its factorization.

20953850522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10923.

The product of its (nonzero) digits is 216000, while the sum is 41.

The spelling of 20953850522 in words is "twenty billion, nine hundred fifty-three million, eight hundred fifty thousand, five hundred twenty-two".