2668905020 has 24 divisors (see below), whose sum is σ = 5625547200. Its totient is φ = 1063591232.

The previous prime is 2668904971. The next prime is 2668905023. The reversal of 2668905020 is 205098662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2668905023) 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, 242660 + ... + 253419.

It is an arithmetic number, because the mean of its divisors is an integer number (234397800).

Almost surely, 2^2668905020 is an apocalyptic number.

2668905020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2668905020 is an abundant number, since it is smaller than the sum of its proper divisors (2956642180).

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

2668905020 is a wasteful number, since it uses less digits than its factorization.

2668905020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496357 (or 496355 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 2668905020 is about 51661.4461663628. The cubic root of 2668905020 is about 1387.1104370725.

The spelling of 2668905020 in words is "two billion, six hundred sixty-eight million, nine hundred five thousand, twenty".