11559000091 has 8 divisors (see below), whose sum is σ = 11721130544. Its totient is φ = 11396972160.

The previous prime is 11559000041. The next prime is 11559000097. The reversal of 11559000091 is 19000095511.

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

It is a cyclic number.

It is not a de Polignac number, because 11559000091 - 2¹¹ = 11558998043 is a prime.

It is a super-2 number, since 2×11559000091² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11559000097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217471 + ... + 265351.

It is an arithmetic number, because the mean of its divisors is an integer number (1465141318).

Almost surely, 2^11559000091 is an apocalyptic number.

11559000091 is a deficient number, since it is larger than the sum of its proper divisors (162130453).

11559000091 is an equidigital number, since it uses as much as digits as its factorization.

11559000091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51261.

The product of its (nonzero) digits is 2025, while the sum is 31.

The spelling of 11559000091 in words is "eleven billion, five hundred fifty-nine million, ninety-one", and thus it is an aban number.