666750527546683 has 2 divisors, whose sum is σ = 666750527546684. Its totient is φ = 666750527546682.

The previous prime is 666750527546659. The next prime is 666750527546729. The reversal of 666750527546683 is 386645725057666.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 666750527546683 - 2²¹ = 666750525449531 is a prime.

It is not a weakly prime, because it can be changed into another prime (666750527546083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333375263773341 + 333375263773342.

It is an arithmetic number, because the mean of its divisors is an integer number (333375263773342).

Almost surely, 2^{666750527546683} is an apocalyptic number.

666750527546683 is a deficient number, since it is larger than the sum of its proper divisors (1).

666750527546683 is an equidigital number, since it uses as much as digits as its factorization.

666750527546683 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9144576000, while the sum is 76.

The spelling of 666750527546683 in words is "six hundred sixty-six trillion, seven hundred fifty billion, five hundred twenty-seven million, five hundred forty-six thousand, six hundred eighty-three".