220645047066 has 16 divisors (see below), whose sum is σ = 464515888800. Its totient is φ = 69677383248.

The previous prime is 220645047061. The next prime is 220645047097. The reversal of 220645047066 is 660740546022.

It is not an unprimeable number, because it can be changed into a prime (220645047061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 967741321 + ... + 967741548.

It is an arithmetic number, because the mean of its divisors is an integer number (29032243050).

Almost surely, 2^220645047066 is an apocalyptic number.

220645047066 is an abundant number, since it is smaller than the sum of its proper divisors (243870841734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220645047066 is a wasteful number, since it uses less digits than its factorization.

220645047066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1935482893.

The product of its (nonzero) digits is 483840, while the sum is 42.

The spelling of 220645047066 in words is "two hundred twenty billion, six hundred forty-five million, forty-seven thousand, sixty-six".