11551531255651 has 8 divisors (see below), whose sum is σ = 11709871835904. Its totient is φ = 11393193389760.

The previous prime is 11551531255603. The next prime is 11551531255657. The reversal of 11551531255651 is 15655213515511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11551531255651 - 2²³ = 11551522867043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11551531255657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8790525 + ... + 10018801.

It is an arithmetic number, because the mean of its divisors is an integer number (1463733979488).

Almost surely, 2^{11551531255651} is an apocalyptic number.

11551531255651 is a deficient number, since it is larger than the sum of its proper divisors (158340580253).

11551531255651 is a wasteful number, since it uses less digits than its factorization.

11551531255651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1357181.

The product of its digits is 562500, while the sum is 46.

The spelling of 11551531255651 in words is "eleven trillion, five hundred fifty-one billion, five hundred thirty-one million, two hundred fifty-five thousand, six hundred fifty-one".