20323677700 has 36 divisors (see below), whose sum is σ = 44204327860. Its totient is φ = 8110679040.

The previous prime is 20323677679. The next prime is 20323677727. The reversal of 20323677700 is 777632302.

It can be written as a sum of positive squares in 6 ways, for example, as 2604996 + 20321072704 = 1614^2 + 142552^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20323677700.

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, 191385 + ... + 277984.

Almost surely, 2^20323677700 is an apocalyptic number.

20323677700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20323677700 is an abundant number, since it is smaller than the sum of its proper divisors (23880650160).

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

20323677700 is a wasteful number, since it uses less digits than its factorization.

20323677700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469816 (or 469809 counting only the distinct ones).

The product of its (nonzero) digits is 74088, while the sum is 37.

The spelling of 20323677700 in words is "twenty billion, three hundred twenty-three million, six hundred seventy-seven thousand, seven hundred".