11256163364431 has 4 divisors (see below), whose sum is σ = 11267755706664. Its totient is φ = 11244571022200.

The previous prime is 11256163364423. The next prime is 11256163364437. The reversal of 11256163364431 is 13446336165211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11256163364431 - 2³ = 11256163364423 is a prime.

It is a super-2 number, since 2×11256163364431² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11256163364437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5796169660 + ... + 5796171601.

It is an arithmetic number, because the mean of its divisors is an integer number (2816938926666).

Almost surely, 2^{11256163364431} is an apocalyptic number.

11256163364431 is a deficient number, since it is larger than the sum of its proper divisors (11592342233).

11256163364431 is an equidigital number, since it uses as much as digits as its factorization.

11256163364431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11592342232.

The product of its digits is 933120, while the sum is 46.

The spelling of 11256163364431 in words is "eleven trillion, two hundred fifty-six billion, one hundred sixty-three million, three hundred sixty-four thousand, four hundred thirty-one".