11885516245 has 4 divisors (see below), whose sum is σ = 14262619500. Its totient is φ = 9508412992.

The previous prime is 11885516239. The next prime is 11885516261. The reversal of 11885516245 is 54261558811.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54261558811 = 61 ⋅889533751.

It can be written as a sum of positive squares in 2 ways, for example, as 8058114289 + 3827401956 = 89767^2 + 61866^2 .

It is a cyclic number.

It is not a de Polignac number, because 11885516245 - 2⁵ = 11885516213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11885516195 and 11885516204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1188551620 + ... + 1188551629.

It is an arithmetic number, because the mean of its divisors is an integer number (3565654875).

Almost surely, 2^11885516245 is an apocalyptic number.

It is an amenable number.

11885516245 is a deficient number, since it is larger than the sum of its proper divisors (2377103255).

11885516245 is an equidigital number, since it uses as much as digits as its factorization.

11885516245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2377103254.

The product of its digits is 384000, while the sum is 46.

The spelling of 11885516245 in words is "eleven billion, eight hundred eighty-five million, five hundred sixteen thousand, two hundred forty-five".