11109255715 has 4 divisors (see below), whose sum is σ = 13331106864. Its totient is φ = 8887404568.

The previous prime is 11109255713. The next prime is 11109255743. The reversal of 11109255715 is 51755290111.

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 11109255715 - 2¹ = 11109255713 is a prime.

It is a super-2 number, since 2×11109255715² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11109255713) 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, 1110925567 + ... + 1110925576.

It is an arithmetic number, because the mean of its divisors is an integer number (3332776716).

Almost surely, 2^11109255715 is an apocalyptic number.

11109255715 is a deficient number, since it is larger than the sum of its proper divisors (2221851149).

11109255715 is an equidigital number, since it uses as much as digits as its factorization.

11109255715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2221851148.

The product of its (nonzero) digits is 15750, while the sum is 37.

The spelling of 11109255715 in words is "eleven billion, one hundred nine million, two hundred fifty-five thousand, seven hundred fifteen".