11540251516 has 12 divisors (see below), whose sum is σ = 20395395720. Its totient is φ = 5712995600.

The previous prime is 11540251451. The next prime is 11540251553. The reversal of 11540251516 is 61515204511.

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, 14282086 + ... + 14282893.

It is an arithmetic number, because the mean of its divisors is an integer number (1699616310).

Almost surely, 2^11540251516 is an apocalyptic number.

It is an amenable number.

11540251516 is a deficient number, since it is larger than the sum of its proper divisors (8855144204).

11540251516 is a wasteful number, since it uses less digits than its factorization.

11540251516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28565084 (or 28565082 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 31.

The spelling of 11540251516 in words is "eleven billion, five hundred forty million, two hundred fifty-one thousand, five hundred sixteen".