20202664662 has 24 divisors (see below), whose sum is σ = 43823431080. Its totient is φ = 6726376800.

The previous prime is 20202664649. The next prime is 20202664681. The reversal of 20202664662 is 26646620202.

It is a happy number.

20202664662 is a `hidden beast` number, since 2 + 0 + 2 + 0 + 2 + 6 + 646 + 6 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 637839 + ... + 668762.

It is an arithmetic number, because the mean of its divisors is an integer number (1825976295).

Almost surely, 2^20202664662 is an apocalyptic number.

20202664662 is an abundant number, since it is smaller than the sum of its proper divisors (23620766418).

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

20202664662 is a wasteful number, since it uses less digits than its factorization.

20202664662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307468 (or 1307465 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The spelling of 20202664662 in words is "twenty billion, two hundred two million, six hundred sixty-four thousand, six hundred sixty-two".