11157265406 has 24 divisors (see below), whose sum is σ = 19640594880. Its totient is φ = 4739364672.

The previous prime is 11157265363. The next prime is 11157265411. The reversal of 11157265406 is 60456275111.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11157265406.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 492686 + ... + 514833.

It is an arithmetic number, because the mean of its divisors is an integer number (818358120).

Almost surely, 2^11157265406 is an apocalyptic number.

11157265406 is a deficient number, since it is larger than the sum of its proper divisors (8483329474).

11157265406 is a wasteful number, since it uses less digits than its factorization.

11157265406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007648 (or 1007641 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 38.

The spelling of 11157265406 in words is "eleven billion, one hundred fifty-seven million, two hundred sixty-five thousand, four hundred six".