11157347511 has 10 divisors (see below), whose sum is σ = 16667148872. Its totient is φ = 7438231620.

The previous prime is 11157347489. The next prime is 11157347543. The reversal of 11157347511 is 11574375111.

11157347511 is a `hidden beast` number, since 1 + 1 + 1 + 573 + 4 + 75 + 11 = 666.

It is not a de Polignac number, because 11157347511 - 2¹⁷ = 11157216439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11157347581) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 68872435 + ... + 68872596.

Almost surely, 2^11157347511 is an apocalyptic number.

11157347511 is a deficient number, since it is larger than the sum of its proper divisors (5509801361).

11157347511 is an equidigital number, since it uses as much as digits as its factorization.

11157347511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137745043 (or 137745034 counting only the distinct ones).

The product of its digits is 14700, while the sum is 36.

The spelling of 11157347511 in words is "eleven billion, one hundred fifty-seven million, three hundred forty-seven thousand, five hundred eleven".