11553256667 has 2 divisors, whose sum is σ = 11553256668. Its totient is φ = 11553256666.

The previous prime is 11553256657. The next prime is 11553256703. The reversal of 11553256667 is 76665235511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11553256667 - 2⁸ = 11553256411 is a prime.

It is a super-2 number, since 2×11553256667² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11553256657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5776628333 + 5776628334.

It is an arithmetic number, because the mean of its divisors is an integer number (5776628334).

Almost surely, 2^11553256667 is an apocalyptic number.

11553256667 is a deficient number, since it is larger than the sum of its proper divisors (1).

11553256667 is an equidigital number, since it uses as much as digits as its factorization.

11553256667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1134000, while the sum is 47.

The spelling of 11553256667 in words is "eleven billion, five hundred fifty-three million, two hundred fifty-six thousand, six hundred sixty-seven".