11551530651 has 16 divisors (see below), whose sum is σ = 16834111488. Its totient is φ = 7014211200.

The previous prime is 11551530637. The next prime is 11551530667. The reversal of 11551530651 is 15603515511.

11551530651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11551530651 - 2¹⁴ = 11551514267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11551530671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3651655 + ... + 3654816.

It is an arithmetic number, because the mean of its divisors is an integer number (1052131968).

Almost surely, 2^11551530651 is an apocalyptic number.

11551530651 is a deficient number, since it is larger than the sum of its proper divisors (5282580837).

11551530651 is a wasteful number, since it uses less digits than its factorization.

11551530651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7306522.

The product of its (nonzero) digits is 11250, while the sum is 33.

The spelling of 11551530651 in words is "eleven billion, five hundred fifty-one million, five hundred thirty thousand, six hundred fifty-one".