220772066 has 16 divisors (see below), whose sum is σ = 339500160. Its totient is φ = 107623440.

The previous prime is 220772059. The next prime is 220772087. The reversal of 220772066 is 660277022.

220772066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 20921 + ... + 29651.

It is an arithmetic number, because the mean of its divisors is an integer number (21218760).

Almost surely, 2^220772066 is an apocalyptic number.

220772066 is a deficient number, since it is larger than the sum of its proper divisors (118728094).

220772066 is a wasteful number, since it uses less digits than its factorization.

220772066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9049.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 220772066 is about 14858.4005195714. The cubic root of 220772066 is about 604.3864334850.

The spelling of 220772066 in words is "two hundred twenty million, seven hundred seventy-two thousand, sixty-six".