2644024066 has 4 divisors (see below), whose sum is σ = 3966036102. Its totient is φ = 1322012032.

The previous prime is 2644024051. The next prime is 2644024081. The reversal of 2644024066 is 6604204462.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2644024051) and next prime (2644024081).

It can be written as a sum of positive squares in only one way, i.e., 1519830225 + 1124193841 = 38985^2 + 33529^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661006015 + ... + 661006018.

Almost surely, 2^2644024066 is an apocalyptic number.

2644024066 is a deficient number, since it is larger than the sum of its proper divisors (1322012036).

2644024066 is a wasteful number, since it uses less digits than its factorization.

2644024066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1322012035.

The product of its (nonzero) digits is 55296, while the sum is 34.

The square root of 2644024066 is about 51420.0745429254. The cubic root of 2644024066 is about 1382.7865117137.

The spelling of 2644024066 in words is "two billion, six hundred forty-four million, twenty-four thousand, sixty-six".