11615315871 has 16 divisors (see below), whose sum is σ = 15661451520. Its totient is φ = 7656593280.

The previous prime is 11615315849. The next prime is 11615315903. The reversal of 11615315871 is 17851351611.

It is not a de Polignac number, because 11615315871 - 2⁵ = 11615315839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11615315801) 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, 175111 + ... + 232151.

It is an arithmetic number, because the mean of its divisors is an integer number (978840720).

Almost surely, 2^11615315871 is an apocalyptic number.

11615315871 is a deficient number, since it is larger than the sum of its proper divisors (4046135649).

11615315871 is a wasteful number, since it uses less digits than its factorization.

11615315871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57806.

The product of its digits is 25200, while the sum is 39.

The spelling of 11615315871 in words is "eleven billion, six hundred fifteen million, three hundred fifteen thousand, eight hundred seventy-one".