15198802855 has 4 divisors (see below), whose sum is σ = 18238563432. Its totient is φ = 12159042280.

The previous prime is 15198802849. The next prime is 15198802873. The reversal of 15198802855 is 55820889151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55820889151 = 66943 ⋅833857.

It is not a de Polignac number, because 15198802855 - 2³ = 15198802847 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 3 ways as a sum of consecutive naturals, for example, 1519880281 + ... + 1519880290.

It is an arithmetic number, because the mean of its divisors is an integer number (4559640858).

Almost surely, 2^15198802855 is an apocalyptic number.

15198802855 is a deficient number, since it is larger than the sum of its proper divisors (3039760577).

15198802855 is an equidigital number, since it uses as much as digits as its factorization.

15198802855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3039760576.

The product of its (nonzero) digits is 1152000, while the sum is 52.

The spelling of 15198802855 in words is "fifteen billion, one hundred ninety-eight million, eight hundred two thousand, eight hundred fifty-five".