2662266640 has 160 divisors (see below), whose sum is σ = 7188289920. Its totient is φ = 906240000.

The previous prime is 2662266599. The next prime is 2662266683. The reversal of 2662266640 is 466622662.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 2662266593 and 2662266602.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3754606 + ... + 3755314.

It is an arithmetic number, because the mean of its divisors is an integer number (44926812).

Almost surely, 2^2662266640 is an apocalyptic number.

2662266640 is a gapful number since it is divisible by the number (20) 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 2662266640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3594144960).

2662266640 is an abundant number, since it is smaller than the sum of its proper divisors (4526023280).

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

2662266640 is a wasteful number, since it uses less digits than its factorization.

2662266640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001 (or 995 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 40.

The square root of 2662266640 is about 51597.1572860366. The cubic root of 2662266640 is about 1385.9594268035.

The spelling of 2662266640 in words is "two billion, six hundred sixty-two million, two hundred sixty-six thousand, six hundred forty".