666263332264142 has 16 divisors (see below), whose sum is σ = 999836614848240. Its totient is φ = 332984464435392.

The previous prime is 666263332264087. The next prime is 666263332264147. The reversal of 666263332264142 is 241462233362666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666263332264147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 366676538 + ... + 368489090.

It is an arithmetic number, because the mean of its divisors is an integer number (62489788428015).

Almost surely, 2^{666263332264142} is an apocalyptic number.

666263332264142 is a deficient number, since it is larger than the sum of its proper divisors (333573282584098).

666263332264142 is a wasteful number, since it uses less digits than its factorization.

666263332264142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1893667.

The product of its digits is 53747712, while the sum is 56.

The spelling of 666263332264142 in words is "six hundred sixty-six trillion, two hundred sixty-three billion, three hundred thirty-two million, two hundred sixty-four thousand, one hundred forty-two".