11245512015 has 128 divisors (see below), whose sum is σ = 21288960000. Its totient is φ = 5620741632.

The previous prime is 11245511989. The next prime is 11245512037. The reversal of 11245512015 is 51021554211.

It is a happy number.

11245512015 is a `hidden beast` number, since 1 + 1 + 2 + 455 + 1 + 201 + 5 = 666.

It is not a de Polignac number, because 11245512015 - 2⁹ = 11245511503 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 11245512015.

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, 50428194 + ... + 50428416.

It is an arithmetic number, because the mean of its divisors is an integer number (166320000).

Almost surely, 2^11245512015 is an apocalyptic number.

11245512015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11245512015 is a deficient number, since it is larger than the sum of its proper divisors (10043447985).

11245512015 is a wasteful number, since it uses less digits than its factorization.

11245512015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518 (or 512 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 27.

The spelling of 11245512015 in words is "eleven billion, two hundred forty-five million, five hundred twelve thousand, fifteen".