20099294915 has 16 divisors (see below), whose sum is σ = 28515257280. Its totient is φ = 13307118720.

The previous prime is 20099294903. The next prime is 20099294921. The reversal of 20099294915 is 51949299002.

It is not a de Polignac number, because 20099294915 - 2⁶ = 20099294851 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9900116 + ... + 9902145.

It is an arithmetic number, because the mean of its divisors is an integer number (1782203580).

Almost surely, 2^20099294915 is an apocalyptic number.

20099294915 is a deficient number, since it is larger than the sum of its proper divisors (8415962365).

20099294915 is a wasteful number, since it uses less digits than its factorization.

20099294915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19802302.

The product of its (nonzero) digits is 524880, while the sum is 50.

The spelling of 20099294915 in words is "twenty billion, ninety-nine million, two hundred ninety-four thousand, nine hundred fifteen".