2099515203125 has 28 divisors (see below), whose sum is σ = 2709017824128. Its totient is φ = 1625430750000.

The previous prime is 2099515203067. The next prime is 2099515203131. The reversal of 2099515203125 is 5213025159902.

It is a de Polignac number, because none of the positive numbers 2^k-2099515203125 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1682867 + ... + 2651616.

It is an arithmetic number, because the mean of its divisors is an integer number (96750636576).

Almost surely, 2^{2099515203125} is an apocalyptic number.

2099515203125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2099515203125 is a deficient number, since it is larger than the sum of its proper divisors (609502621003).

2099515203125 is an frugal number, since it uses more digits than its factorization.

2099515203125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4334544 (or 4334519 counting only the distinct ones).

The product of its (nonzero) digits is 243000, while the sum is 44.

The spelling of 2099515203125 in words is "two trillion, ninety-nine billion, five hundred fifteen million, two hundred three thousand, one hundred twenty-five".