9990925598 has 16 divisors (see below), whose sum is σ = 15254950320. Its totient is φ = 4906104000.

The previous prime is 9990925583. The next prime is 9990925603. The reversal of 9990925598 is 8955290999.

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, 85298 + ... + 165098.

It is an arithmetic number, because the mean of its divisors is an integer number (953434395).

Almost surely, 2^9990925598 is an apocalyptic number.

9990925598 is a deficient number, since it is larger than the sum of its proper divisors (5264024722).

9990925598 is a wasteful number, since it uses less digits than its factorization.

9990925598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80923.

The product of its (nonzero) digits is 23619600, while the sum is 65.

The square root of 9990925598 is about 99954.6176922307. The cubic root of 9990925598 is about 2153.7828192655.

The spelling of 9990925598 in words is "nine billion, nine hundred ninety million, nine hundred twenty-five thousand, five hundred ninety-eight".