11550937506 has 16 divisors (see below), whose sum is σ = 23107312800. Its totient is φ = 3849406208.

The previous prime is 11550937471. The next prime is 11550937511. The reversal of 11550937506 is 60573905511.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198696 + ... + 250163.

It is an arithmetic number, because the mean of its divisors is an integer number (1444207050).

Almost surely, 2^11550937506 is an apocalyptic number.

11550937506 is an abundant number, since it is smaller than the sum of its proper divisors (11556375294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11550937506 is a wasteful number, since it uses less digits than its factorization.

11550937506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453153.

The product of its (nonzero) digits is 141750, while the sum is 42.

It can be divided in two parts, 1155093750 and 6, that multiplied together give a square (6930562500 = 83250²).

The spelling of 11550937506 in words is "eleven billion, five hundred fifty million, nine hundred thirty-seven thousand, five hundred six".