66600022442 has 8 divisors (see below), whose sum is σ = 103344862500. Its totient is φ = 32151734944.

The previous prime is 66600022429. The next prime is 66600022453. The reversal of 66600022442 is 24422000666.

It can be written as a sum of positive squares in 2 ways, for example, as 64658826961 + 1941195481 = 254281^2 + 44059^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 66600022399 and 66600022408.

It is an unprimeable number.

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, 574138067 + ... + 574138182.

Almost surely, 2^66600022442 is an apocalyptic number.

66600022442 is a deficient number, since it is larger than the sum of its proper divisors (36744840058).

66600022442 is a wasteful number, since it uses less digits than its factorization.

66600022442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1148276280.

The product of its (nonzero) digits is 27648, while the sum is 32.

The spelling of 66600022442 in words is "sixty-six billion, six hundred million, twenty-two thousand, four hundred forty-two".