12915415135995 has 16 divisors (see below), whose sum is σ = 20676657679872. Its totient is φ = 6884223585120.

The previous prime is 12915415135993. The next prime is 12915415135999. The reversal of 12915415135995 is 59953151451921.

It is a happy number.

It is not a de Polignac number, because 12915415135995 - 2¹ = 12915415135993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12915415135993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 249837091 + ... + 249888780.

It is an arithmetic number, because the mean of its divisors is an integer number (1292291104992).

Almost surely, 2^{12915415135995} is an apocalyptic number.

12915415135995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12915415135995 is a deficient number, since it is larger than the sum of its proper divisors (7761242543877).

12915415135995 is a wasteful number, since it uses less digits than its factorization.

12915415135995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499727602.

The product of its digits is 10935000, while the sum is 60.

The spelling of 12915415135995 in words is "twelve trillion, nine hundred fifteen billion, four hundred fifteen million, one hundred thirty-five thousand, nine hundred ninety-five".