11157390117 has 20 divisors (see below), whose sum is σ = 16670053356. Its totient is φ = 7436992320.

The previous prime is 11157390089. The next prime is 11157390119. The reversal of 11157390117 is 71109375111.

11157390117 is a `hidden beast` number, since 1 + 1 + 157 + 390 + 117 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9185497281 + 1971892836 = 95841^2 + 44406^2 .

It is not a de Polignac number, because 11157390117 - 2⁶ = 11157390053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11157390119) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 925267 + ... + 937247.

Almost surely, 2^11157390117 is an apocalyptic number.

It is an amenable number.

11157390117 is a deficient number, since it is larger than the sum of its proper divisors (5512663239).

11157390117 is a wasteful number, since it uses less digits than its factorization.

11157390117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23490 (or 23481 counting only the distinct ones).

The product of its (nonzero) digits is 6615, while the sum is 36.

The spelling of 11157390117 in words is "eleven billion, one hundred fifty-seven million, three hundred ninety thousand, one hundred seventeen".