6545126200663 has 16 divisors (see below), whose sum is σ = 6594053983200. Its totient is φ = 6496398913536.

The previous prime is 6545126200619. The next prime is 6545126200693. The reversal of 6545126200663 is 3660026215456.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6545126200663 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 (6545126200693) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126052795 + ... + 126104707.

It is an arithmetic number, because the mean of its divisors is an integer number (412128373950).

Almost surely, 2^{6545126200663} is an apocalyptic number.

6545126200663 is a deficient number, since it is larger than the sum of its proper divisors (48927782537).

6545126200663 is a wasteful number, since it uses less digits than its factorization.

6545126200663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53826.

The product of its (nonzero) digits is 1555200, while the sum is 46.

The spelling of 6545126200663 in words is "six trillion, five hundred forty-five billion, one hundred twenty-six million, two hundred thousand, six hundred sixty-three".