55666347296 has 72 divisors (see below), whose sum is σ = 130198513536. Its totient is φ = 23349379200.

The previous prime is 55666347283. The next prime is 55666347299. The reversal of 55666347296 is 69274366655.

55666347296 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (55666347299) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 303980 + ... + 451371.

It is an arithmetic number, because the mean of its divisors is an integer number (1808312688).

Almost surely, 2^55666347296 is an apocalyptic number.

55666347296 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

55666347296 is an abundant number, since it is smaller than the sum of its proper divisors (74532166240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55666347296 is a wasteful number, since it uses less digits than its factorization.

55666347296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755422 (or 755407 counting only the distinct ones).

The product of its digits is 48988800, while the sum is 59.

The spelling of 55666347296 in words is "fifty-five billion, six hundred sixty-six million, three hundred forty-seven thousand, two hundred ninety-six".