11641160491 has 2 divisors, whose sum is σ = 11641160492. Its totient is φ = 11641160490.

The previous prime is 11641160437. The next prime is 11641160537. The reversal of 11641160491 is 19406114611.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11641160491 - 2²⁷ = 11506942763 is a prime.

It is a super-2 number, since 2×11641160491² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11641160891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5820580245 + 5820580246.

It is an arithmetic number, because the mean of its divisors is an integer number (5820580246).

Almost surely, 2^11641160491 is an apocalyptic number.

11641160491 is a deficient number, since it is larger than the sum of its proper divisors (1).

11641160491 is an equidigital number, since it uses as much as digits as its factorization.

11641160491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 34.

The spelling of 11641160491 in words is "eleven billion, six hundred forty-one million, one hundred sixty thousand, four hundred ninety-one".