202216323920 has 80 divisors (see below), whose sum is σ = 506409118992. Its totient is φ = 74651136000.

The previous prime is 202216323877. The next prime is 202216323929. The reversal of 202216323920 is 29323612202.

It can be written as a sum of positive squares in 8 ways, for example, as 11061990976 + 191154332944 = 105176^2 + 437212^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202216323929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7267154 + ... + 7294926.

Almost surely, 2^202216323920 is an apocalyptic number.

202216323920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202216323920 is an abundant number, since it is smaller than the sum of its proper divisors (304192795072).

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

202216323920 is a wasteful number, since it uses less digits than its factorization.

202216323920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34800 (or 34794 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

The spelling of 202216323920 in words is "two hundred two billion, two hundred sixteen million, three hundred twenty-three thousand, nine hundred twenty".