11554656513311 has 4 divisors (see below), whose sum is σ = 11568628287432. Its totient is φ = 11540684739192.

The previous prime is 11554656513307. The next prime is 11554656513313. The reversal of 11554656513311 is 11331565645511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11554656513311 - 2² = 11554656513307 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 (11554656513313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6985885820 + ... + 6985887473.

It is an arithmetic number, because the mean of its divisors is an integer number (2892157071858).

Almost surely, 2^{11554656513311} is an apocalyptic number.

11554656513311 is a deficient number, since it is larger than the sum of its proper divisors (13971774121).

11554656513311 is an equidigital number, since it uses as much as digits as its factorization.

11554656513311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13971774120.

The product of its digits is 810000, while the sum is 47.

The spelling of 11554656513311 in words is "eleven trillion, five hundred fifty-four billion, six hundred fifty-six million, five hundred thirteen thousand, three hundred eleven".