15115049555 has 8 divisors (see below), whose sum is σ = 18140088912. Its totient is φ = 12090686688.

The previous prime is 15115049531. The next prime is 15115049629. The reversal of 15115049555 is 55594051151.

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 15115049555 - 2¹² = 15115045459 is a prime.

It is a Duffinian 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, 118592 + ... + 210461.

It is an arithmetic number, because the mean of its divisors is an integer number (2267511114).

Almost surely, 2^15115049555 is an apocalyptic number.

15115049555 is a deficient number, since it is larger than the sum of its proper divisors (3025039357).

15115049555 is an equidigital number, since it uses as much as digits as its factorization.

15115049555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338245.

The product of its (nonzero) digits is 112500, while the sum is 41.

The spelling of 15115049555 in words is "fifteen billion, one hundred fifteen million, forty-nine thousand, five hundred fifty-five".