15615406113 has 8 divisors (see below), whose sum is σ = 20839699968. Its totient is φ = 10400691504.

The previous prime is 15615406069. The next prime is 15615406171. The reversal of 15615406113 is 31160451651.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 15615406113 - 2⁹ = 15615405601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15615406013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2391006 + ... + 2397527.

It is an arithmetic number, because the mean of its divisors is an integer number (2604962496).

Almost surely, 2^15615406113 is an apocalyptic number.

It is an amenable number.

15615406113 is a deficient number, since it is larger than the sum of its proper divisors (5224293855).

15615406113 is a wasteful number, since it uses less digits than its factorization.

15615406113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4789623.

The product of its (nonzero) digits is 10800, while the sum is 33.

Adding to 15615406113 its reverse (31160451651), we get a palindrome (46775857764).

The spelling of 15615406113 in words is "fifteen billion, six hundred fifteen million, four hundred six thousand, one hundred thirteen".