990334209901 has 8 divisors (see below), whose sum is σ = 991186485120. Its totient is φ = 989482283712.

The previous prime is 990334209859. The next prime is 990334209911. The reversal of 990334209901 is 109902433099.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-990334209901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990334209911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5757126 + ... + 5926648.

It is an arithmetic number, because the mean of its divisors is an integer number (123898310640).

Almost surely, 2^990334209901 is an apocalyptic number.

It is an amenable number.

990334209901 is a deficient number, since it is larger than the sum of its proper divisors (852275219).

990334209901 is a wasteful number, since it uses less digits than its factorization.

990334209901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174515.

The product of its (nonzero) digits is 472392, while the sum is 49.

The spelling of 990334209901 in words is "nine hundred ninety billion, three hundred thirty-four million, two hundred nine thousand, nine hundred one".