2665530126063 has 12 divisors (see below), whose sum is σ = 4400240208208. Its totient is φ = 1523160072000.

The previous prime is 2665530126047. The next prime is 2665530126109. The reversal of 2665530126063 is 3606210355662.

2665530126063 is a `hidden beast` number, since 2 + 6 + 6 + 5 + 5 + 30 + 1 + 2 + 606 + 3 = 666.

It is not a de Polignac number, because 2665530126063 - 2⁴ = 2665530126047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2665530126043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21155000938 + ... + 21155001063.

Almost surely, 2^{2665530126063} is an apocalyptic number.

2665530126063 is a deficient number, since it is larger than the sum of its proper divisors (1734710082145).

2665530126063 is a wasteful number, since it uses less digits than its factorization.

2665530126063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42310002014 (or 42310002011 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 45.

The spelling of 2665530126063 in words is "two trillion, six hundred sixty-five billion, five hundred thirty million, one hundred twenty-six thousand, sixty-three".