55666347355 has 8 divisors (see below), whose sum is σ = 66988852992. Its totient is φ = 44406920448.

The previous prime is 55666347329. The next prime is 55666347361. The reversal of 55666347355 is 55374366655.

It is a happy number.

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 55666347355 - 2³¹ = 53518863707 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55666347296 and 55666347305.

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, 15767739 + ... + 15771268.

It is an arithmetic number, because the mean of its divisors is an integer number (8373606624).

Almost surely, 2^55666347355 is an apocalyptic number.

55666347355 is a deficient number, since it is larger than the sum of its proper divisors (11322505637).

55666347355 is a wasteful number, since it uses less digits than its factorization.

55666347355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31539365.

The product of its digits is 34020000, while the sum is 55.

The spelling of 55666347355 in words is "fifty-five billion, six hundred sixty-six million, three hundred forty-seven thousand, three hundred fifty-five".