2566740645203 has 48 divisors (see below), whose sum is σ = 3071597760000. Its totient is φ = 2137945138560.

The previous prime is 2566740645197. The next prime is 2566740645239. The reversal of 2566740645203 is 3025460476652.

2566740645203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2566740645203 - 2¹⁴ = 2566740628819 is a prime.

It is a super-2 number, since 2×2566740645203² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2566740648203) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 74061023 + ... + 74095671.

It is an arithmetic number, because the mean of its divisors is an integer number (63991620000).

Almost surely, 2^{2566740645203} is an apocalyptic number.

2566740645203 is a deficient number, since it is larger than the sum of its proper divisors (504857114797).

2566740645203 is a wasteful number, since it uses less digits than its factorization.

2566740645203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35040 (or 35033 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 50.

The spelling of 2566740645203 in words is "two trillion, five hundred sixty-six billion, seven hundred forty million, six hundred forty-five thousand, two hundred three".