20104943600 has 60 divisors (see below), whose sum is σ = 55202438544. Its totient is φ = 6893122560.

The previous prime is 20104943587. The next prime is 20104943629. The reversal of 20104943600 is 634940102.

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, 3587369 + ... + 3592968.

Almost surely, 2^20104943600 is an apocalyptic number.

20104943600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20104943600 is an abundant number, since it is smaller than the sum of its proper divisors (35097494944).

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

20104943600 is a wasteful number, since it uses less digits than its factorization.

20104943600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7180362 (or 7180351 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The spelling of 20104943600 in words is "twenty billion, one hundred four million, nine hundred forty-three thousand, six hundred".