2640002244633 has 18 divisors (see below), whose sum is σ = 4129234282446. Its totient is φ = 1624616764992.

The previous prime is 2640002244631. The next prime is 2640002244653. The reversal of 2640002244633 is 3364422000462.

2640002244633 is a `hidden beast` number, since 2 + 6 + 400 + 0 + 2 + 244 + 6 + 3 + 3 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 304276901769 + 2335725342864 = 551613^2 + 1528308^2 .

It is not a de Polignac number, because 2640002244633 - 2¹ = 2640002244631 is a prime.

It is a super-2 number, since 2×2640002244633² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2640002244631) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 867849316 + ... + 867852357.

Almost surely, 2^{2640002244633} is an apocalyptic number.

It is an amenable number.

2640002244633 is a deficient number, since it is larger than the sum of its proper divisors (1489232037813).

2640002244633 is a wasteful number, since it uses less digits than its factorization.

2640002244633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1735701705 (or 1735701689 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 36.

The spelling of 2640002244633 in words is "two trillion, six hundred forty billion, two million, two hundred forty-four thousand, six hundred thirty-three".