15115130445415 has 32 divisors (see below), whose sum is σ = 24353329061376. Its totient is φ = 8697617516160.

The previous prime is 15115130445397. The next prime is 15115130445433. The reversal of 15115130445415 is 51454403151151.

It is an interprime number because it is at equal distance from previous prime (15115130445397) and next prime (15115130445433).

It is not a de Polignac number, because 15115130445415 - 2⁵ = 15115130445383 is a prime.

It is a super-2 number, since 2×15115130445415² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1509998037 + ... + 1510008046.

It is an arithmetic number, because the mean of its divisors is an integer number (761041533168).

Almost surely, 2^{15115130445415} is an apocalyptic number.

15115130445415 is a deficient number, since it is larger than the sum of its proper divisors (9238198615961).

15115130445415 is a wasteful number, since it uses less digits than its factorization.

15115130445415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3020006119.

The product of its (nonzero) digits is 120000, while the sum is 40.

Adding to 15115130445415 its reverse (51454403151151), we get a palindrome (66569533596566).

The spelling of 15115130445415 in words is "fifteen trillion, one hundred fifteen billion, one hundred thirty million, four hundred forty-five thousand, four hundred fifteen".