2668021496 has 64 divisors (see below), whose sum is σ = 6094464000. Its totient is φ = 1069511040.

The previous prime is 2668021487. The next prime is 2668021511. The reversal of 2668021496 is 6941208662.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68186 + ... + 99926.

It is an arithmetic number, because the mean of its divisors is an integer number (95226000).

Almost surely, 2^2668021496 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2668021496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3047232000).

2668021496 is an abundant number, since it is smaller than the sum of its proper divisors (3426442504).

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

2668021496 is a wasteful number, since it uses less digits than its factorization.

2668021496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31852 (or 31848 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 2668021496 is about 51652.8943622717. The cubic root of 2668021496 is about 1386.9573554886.

The spelling of 2668021496 in words is "two billion, six hundred sixty-eight million, twenty-one thousand, four hundred ninety-six".