2099171098902 has 16 divisors (see below), whose sum is σ = 4198715485632. Its totient is φ = 699661485000.

The previous prime is 2099171098891. The next prime is 2099171098939. The reversal of 2099171098902 is 2098901719902.

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, 15480528 + ... + 15615539.

It is an arithmetic number, because the mean of its divisors is an integer number (262419717852).

Almost surely, 2^{2099171098902} is an apocalyptic number.

2099171098902 is an abundant number, since it is smaller than the sum of its proper divisors (2099544386730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2099171098902 is a wasteful number, since it uses less digits than its factorization.

2099171098902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31107323.

The product of its (nonzero) digits is 1469664, while the sum is 57.

The spelling of 2099171098902 in words is "two trillion, ninety-nine billion, one hundred seventy-one million, ninety-eight thousand, nine hundred two".