11172776125 has 128 divisors (see below), whose sum is σ = 17823836160. Its totient is φ = 6836121600.

The previous prime is 11172776081. The next prime is 11172776137. The reversal of 11172776125 is 52167727111.

It is not a de Polignac number, because 11172776125 - 2¹⁵ = 11172743357 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 98874069 + ... + 98874181.

It is an arithmetic number, because the mean of its divisors is an integer number (139248720).

Almost surely, 2^11172776125 is an apocalyptic number.

It is an amenable number.

11172776125 is a deficient number, since it is larger than the sum of its proper divisors (6651060035).

11172776125 is an equidigital number, since it uses as much as digits as its factorization.

11172776125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209 (or 165 counting only the distinct ones).

The product of its digits is 41160, while the sum is 40.

The spelling of 11172776125 in words is "eleven billion, one hundred seventy-two million, seven hundred seventy-six thousand, one hundred twenty-five".