11656447315 has 8 divisors (see below), whose sum is σ = 13989827808. Its totient is φ = 9323763840.

The previous prime is 11656447217. The next prime is 11656447321. The reversal of 11656447315 is 51374465611.

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

It is not a de Polignac number, because 11656447315 - 2²³ = 11648058707 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, 136726 + ... + 204955.

It is an arithmetic number, because the mean of its divisors is an integer number (1748728476).

Almost surely, 2^11656447315 is an apocalyptic number.

11656447315 is a deficient number, since it is larger than the sum of its proper divisors (2333380493).

11656447315 is an equidigital number, since it uses as much as digits as its factorization.

11656447315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348509.

The product of its digits is 302400, while the sum is 43.

The spelling of 11656447315 in words is "eleven billion, six hundred fifty-six million, four hundred forty-seven thousand, three hundred fifteen".