11157667565 has 16 divisors (see below), whose sum is σ = 14608463616. Its totient is φ = 8113521600.

The previous prime is 11157667541. The next prime is 11157667567. The reversal of 11157667565 is 56576675111.

It is not a de Polignac number, because 11157667565 - 2⁶ = 11157667501 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 (11157667567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 697244 + ... + 713066.

It is an arithmetic number, because the mean of its divisors is an integer number (913028976).

Almost surely, 2^11157667565 is an apocalyptic number.

It is an amenable number.

11157667565 is a deficient number, since it is larger than the sum of its proper divisors (3450796051).

11157667565 is a wasteful number, since it uses less digits than its factorization.

11157667565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28660.

The product of its digits is 1323000, while the sum is 50.

The spelling of 11157667565 in words is "eleven billion, one hundred fifty-seven million, six hundred sixty-seven thousand, five hundred sixty-five".