199990011001001 has 8 divisors (see below), whose sum is σ = 215373969902784. Its totient is φ = 184606068085200.

The previous prime is 199990011000953. The next prime is 199990011001003. The reversal of 199990011001001 is 100100110099991.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 199990011001001 - 2²² = 199990006806697 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 199990011001001.

It is not an unprimeable number, because it can be changed into a prime (199990011001003) 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, 39603476 + ... + 44366826.

It is an arithmetic number, because the mean of its divisors is an integer number (26921746237848).

Almost surely, 2^{199990011001001} is an apocalyptic number.

It is an amenable number.

199990011001001 is a deficient number, since it is larger than the sum of its proper divisors (15383958901783).

199990011001001 is a wasteful number, since it uses less digits than its factorization.

199990011001001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7992991.

The product of its (nonzero) digits is 6561, while the sum is 41.

The spelling of 199990011001001 in words is "one hundred ninety-nine trillion, nine hundred ninety billion, eleven million, one thousand, one".