2663207680 has 72 divisors (see below), whose sum is σ = 7290555552. Its totient is φ = 913096704.

The previous prime is 2663207669. The next prime is 2663207699. The reversal of 2663207680 is 867023662.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 139657 + ... + 157576.

It is an arithmetic number, because the mean of its divisors is an integer number (101257716).

Almost surely, 2^2663207680 is an apocalyptic number.

2663207680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2663207680 is an abundant number, since it is smaller than the sum of its proper divisors (4627347872).

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

2663207680 is an equidigital number, since it uses as much as digits as its factorization.

2663207680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297261 (or 297247 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 2663207680 is about 51606.2755873741. The cubic root of 2663207680 is about 1386.1227074203.

The spelling of 2663207680 in words is "two billion, six hundred sixty-three million, two hundred seven thousand, six hundred eighty".