55705222066 has 8 divisors (see below), whose sum is σ = 89985358764. Its totient is φ = 25710102480.

The previous prime is 55705222063. The next prime is 55705222087. The reversal of 55705222066 is 66022250755.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 55495580625 + 209641441 = 235575^2 + 14479^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (55705222063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1071254245 + ... + 1071254296.

Almost surely, 2^55705222066 is an apocalyptic number.

55705222066 is a deficient number, since it is larger than the sum of its proper divisors (34280136698).

55705222066 is a wasteful number, since it uses less digits than its factorization.

55705222066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2142508556.

The product of its (nonzero) digits is 252000, while the sum is 40.

The spelling of 55705222066 in words is "fifty-five billion, seven hundred five million, two hundred twenty-two thousand, sixty-six".