667366770474727 has 8 divisors (see below), whose sum is σ = 667462481732480. Its totient is φ = 667271060759160.

The previous prime is 667366770474709. The next prime is 667366770474749. The reversal of 667366770474727 is 727474077663766.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-667366770474727 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 (667366770474787) 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, 1079644174 + ... + 1080262132.

It is an arithmetic number, because the mean of its divisors is an integer number (83432810216560).

Almost surely, 2^{667366770474727} is an apocalyptic number.

667366770474727 is a deficient number, since it is larger than the sum of its proper divisors (95711257753).

667366770474727 is a wasteful number, since it uses less digits than its factorization.

667366770474727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771093.

The product of its (nonzero) digits is 14637417984, while the sum is 79.

The spelling of 667366770474727 in words is "six hundred sixty-seven trillion, three hundred sixty-six billion, seven hundred seventy million, four hundred seventy-four thousand, seven hundred twenty-seven".