537645546611663 has 24 divisors (see below), whose sum is σ = 632304517233312. Its totient is φ = 447742201699584.

The previous prime is 537645546611659. The next prime is 537645546611683. The reversal of 537645546611663 is 366116645546735.

It is a happy number.

It is not a de Polignac number, because 537645546611663 - 2² = 537645546611659 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 537645546611593 and 537645546611602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (537645546611653) 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 23 ways as a sum of consecutive naturals, for example, 114897470 + ... + 119485227.

It is an arithmetic number, because the mean of its divisors is an integer number (26346021551388).

Almost surely, 2^{537645546611663} is an apocalyptic number.

537645546611663 is a deficient number, since it is larger than the sum of its proper divisors (94658970621649).

537645546611663 is an equidigital number, since it uses as much as digits as its factorization.

537645546611663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234382911 (or 234382844 counting only the distinct ones).

The product of its digits is 979776000, while the sum is 68.

The spelling of 537645546611663 in words is "five hundred thirty-seven trillion, six hundred forty-five billion, five hundred forty-six million, six hundred eleven thousand, six hundred sixty-three".