2640016043 has 16 divisors (see below), whose sum is σ = 3032272320. Its totient is φ = 2251570176.

The previous prime is 2640016021. The next prime is 2640016091. The reversal of 2640016043 is 3406100462.

It is a cyclic number.

It is not a de Polignac number, because 2640016043 - 2⁸ = 2640015787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2640016543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1484771 + ... + 1486547.

It is an arithmetic number, because the mean of its divisors is an integer number (189517020).

Almost surely, 2^2640016043 is an apocalyptic number.

2640016043 is a deficient number, since it is larger than the sum of its proper divisors (392256277).

2640016043 is a wasteful number, since it uses less digits than its factorization.

2640016043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2726.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 2640016043 is about 51381.0864326554. The cubic root of 2640016043 is about 1382.0874455905.

The spelling of 2640016043 in words is "two billion, six hundred forty million, sixteen thousand, forty-three".