2207663664 has 80 divisors (see below), whose sum is σ = 5819529312. Its totient is φ = 721004544.

The previous prime is 2207663641. The next prime is 2207663677. The reversal of 2207663664 is 4663667022.

It is a happy number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 548122 + ... + 552134.

Almost surely, 2^2207663664 is an apocalyptic number.

2207663664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2207663664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2909764656).

2207663664 is an abundant number, since it is smaller than the sum of its proper divisors (3611865648).

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

2207663664 is a wasteful number, since it uses less digits than its factorization.

2207663664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4254 (or 4248 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 42.

The square root of 2207663664 is about 46985.7815088778. The cubic root of 2207663664 is about 1302.0998929967.

The spelling of 2207663664 in words is "two billion, two hundred seven million, six hundred sixty-three thousand, six hundred sixty-four".