11551633423 has 16 divisors (see below), whose sum is σ = 13257302400. Its totient is φ = 9967494880.

The previous prime is 11551633417. The next prime is 11551633441. The reversal of 11551633423 is 32433615511.

It is not a de Polignac number, because 11551633423 - 2²⁵ = 11518078991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11551633453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 288061 + ... + 325702.

It is an arithmetic number, because the mean of its divisors is an integer number (828581400).

Almost surely, 2^11551633423 is an apocalyptic number.

11551633423 is a deficient number, since it is larger than the sum of its proper divisors (1705668977).

11551633423 is a wasteful number, since it uses less digits than its factorization.

11551633423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613862.

The product of its digits is 32400, while the sum is 34.

The spelling of 11551633423 in words is "eleven billion, five hundred fifty-one million, six hundred thirty-three thousand, four hundred twenty-three".