11516557247 has 16 divisors (see below), whose sum is σ = 12471137280. Its totient is φ = 10571904000.

The previous prime is 11516557223. The next prime is 11516557277. The reversal of 11516557247 is 74275561511.

It is a cyclic number.

It is not a de Polignac number, because 11516557247 - 2¹⁰ = 11516556223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11516557198 and 11516557207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11516557207) 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, 3424847 + ... + 3428207.

It is an arithmetic number, because the mean of its divisors is an integer number (779446080).

Almost surely, 2^11516557247 is an apocalyptic number.

11516557247 is a deficient number, since it is larger than the sum of its proper divisors (954580033).

11516557247 is a wasteful number, since it uses less digits than its factorization.

11516557247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4754.

The product of its digits is 294000, while the sum is 44.

The spelling of 11516557247 in words is "eleven billion, five hundred sixteen million, five hundred fifty-seven thousand, two hundred forty-seven".