990659355244 has 36 divisors (see below), whose sum is σ = 1912690429776. Its totient is φ = 448600446528.

The previous prime is 990659355221. The next prime is 990659355247. The reversal of 990659355244 is 442553956099.

It is not an unprimeable number, because it can be changed into a prime (990659355247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13789384 + ... + 13861039.

It is an arithmetic number, because the mean of its divisors is an integer number (53130289716).

Almost surely, 2^990659355244 is an apocalyptic number.

It is an amenable number.

990659355244 is a deficient number, since it is larger than the sum of its proper divisors (922031074532).

990659355244 is a wasteful number, since it uses less digits than its factorization.

990659355244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27650506 (or 27650491 counting only the distinct ones).

The product of its (nonzero) digits is 52488000, while the sum is 61.

The spelling of 990659355244 in words is "nine hundred ninety billion, six hundred fifty-nine million, three hundred fifty-five thousand, two hundred forty-four".