55666347305 has 8 divisors (see below), whose sum is σ = 66800953800. Its totient is φ = 44532186496.

The previous prime is 55666347299. The next prime is 55666347329. The reversal of 55666347305 is 50374366655.

It can be written as a sum of positive squares in 4 ways, for example, as 37424063209 + 18242284096 = 193453^2 + 135064^2 .

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 55666347305 - 2⁸ = 55666347049 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304541 + ... + 451749.

It is an arithmetic number, because the mean of its divisors is an integer number (8350119225).

Almost surely, 2^55666347305 is an apocalyptic number.

It is an amenable number.

55666347305 is a deficient number, since it is larger than the sum of its proper divisors (11134606495).

55666347305 is a wasteful number, since it uses less digits than its factorization.

55666347305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222843.

The product of its (nonzero) digits is 6804000, while the sum is 50.

The spelling of 55666347305 in words is "fifty-five billion, six hundred sixty-six million, three hundred forty-seven thousand, three hundred five".