20404511125198 has 16 divisors (see below), whose sum is σ = 31634193027744. Its totient is φ = 9863292684960.

The previous prime is 20404511125123. The next prime is 20404511125261. The reversal of 20404511125198 is 89152111540402.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 878130538 + ... + 878153773.

It is an arithmetic number, because the mean of its divisors is an integer number (1977137064234).

Almost surely, 2^{20404511125198} is an apocalyptic number.

20404511125198 is a deficient number, since it is larger than the sum of its proper divisors (11229681902546).

20404511125198 is a wasteful number, since it uses less digits than its factorization.

20404511125198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1756284507.

The product of its (nonzero) digits is 115200, while the sum is 43.

The spelling of 20404511125198 in words is "twenty trillion, four hundred four billion, five hundred eleven million, one hundred twenty-five thousand, one hundred ninety-eight".