11261037159 has 12 divisors (see below), whose sum is σ = 16488764656. Its totient is φ = 7404517152.

The previous prime is 11261037157. The next prime is 11261037169. The reversal of 11261037159 is 95173016211.

It is a happy number.

11261037159 is a `hidden beast` number, since 1 + 1 + 2 + 610 + 37 + 1 + 5 + 9 = 666.

It is not a de Polignac number, because 11261037159 - 2¹ = 11261037157 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 (11261037157) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8569387 + ... + 8570700.

Almost surely, 2^11261037159 is an apocalyptic number.

11261037159 is a deficient number, since it is larger than the sum of its proper divisors (5227727497).

11261037159 is a wasteful number, since it uses less digits than its factorization.

11261037159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17140166 (or 17140163 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

It can be divided in two parts, 112610 and 37159, that added together give a square (149769 = 387²).

The spelling of 11261037159 in words is "eleven billion, two hundred sixty-one million, thirty-seven thousand, one hundred fifty-nine".