45220220666 has 16 divisors (see below), whose sum is σ = 73862431200. Its totient is φ = 20681479728.

The previous prime is 45220220659. The next prime is 45220220671. The reversal of 45220220666 is 66602202254.

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, 20516240 + ... + 20518443.

It is an arithmetic number, because the mean of its divisors is an integer number (4616401950).

Almost surely, 2^45220220666 is an apocalyptic number.

45220220666 is a deficient number, since it is larger than the sum of its proper divisors (28642210534).

45220220666 is a wasteful number, since it uses less digits than its factorization.

45220220666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41034733.

The product of its (nonzero) digits is 69120, while the sum is 35.

The spelling of 45220220666 in words is "forty-five billion, two hundred twenty million, two hundred twenty thousand, six hundred sixty-six".