20407352100 has 72 divisors (see below), whose sum is σ = 59062261440. Its totient is φ = 5440394880.

The previous prime is 20407352033. The next prime is 20407352197. The reversal of 20407352100 is 125370402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1348174 + ... + 1363226.

Almost surely, 2^20407352100 is an apocalyptic number.

20407352100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20407352100 is an abundant number, since it is smaller than the sum of its proper divisors (38654909340).

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

20407352100 is a wasteful number, since it uses less digits than its factorization.

20407352100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19589 (or 19582 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The spelling of 20407352100 in words is "twenty billion, four hundred seven million, three hundred fifty-two thousand, one hundred".