666147402430677 has 40 divisors (see below), whose sum is σ = 1013312167216800. Its totient is φ = 435994464368736.

The previous prime is 666147402430651. The next prime is 666147402430681. The reversal of 666147402430677 is 776034204741666.

It is not a de Polignac number, because 666147402430677 - 2³⁹ = 665597646616789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666147402430607) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 88450027 + ... + 95685432.

It is an arithmetic number, because the mean of its divisors is an integer number (25332804180420).

Almost surely, 2^{666147402430677} is an apocalyptic number.

It is an amenable number.

666147402430677 is a deficient number, since it is larger than the sum of its proper divisors (347164764786123).

666147402430677 is a wasteful number, since it uses less digits than its factorization.

666147402430677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184136287 (or 184136278 counting only the distinct ones).

The product of its (nonzero) digits is 170698752, while the sum is 63.

The spelling of 666147402430677 in words is "six hundred sixty-six trillion, one hundred forty-seven billion, four hundred two million, four hundred thirty thousand, six hundred seventy-seven".