55664411551 has 6 divisors (see below), whose sum is σ = 64752478800. Its totient is φ = 47712352716.

The previous prime is 55664411483. The next prime is 55664411591. The reversal of 55664411551 is 15511446655.

It is a de Polignac number, because none of the positive numbers 2^k-55664411551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55664411498 and 55664411507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55664411591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 568004151 + ... + 568004248.

It is an arithmetic number, because the mean of its divisors is an integer number (10792079800).

Almost surely, 2^55664411551 is an apocalyptic number.

55664411551 is a deficient number, since it is larger than the sum of its proper divisors (9088067249).

55664411551 is a wasteful number, since it uses less digits than its factorization.

55664411551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136008413 (or 1136008406 counting only the distinct ones).

The product of its digits is 360000, while the sum is 43.

The spelling of 55664411551 in words is "fifty-five billion, six hundred sixty-four million, four hundred eleven thousand, five hundred fifty-one".