667606214307415 has 64 divisors (see below), whose sum is σ = 843345954339840. Its totient is φ = 506641428357120.

The previous prime is 667606214307401. The next prime is 667606214307443. The reversal of 667606214307415 is 514703412606766.

It is not a de Polignac number, because 667606214307415 - 2³¹ = 667604066823767 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 667606214307415.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 3461998839 + ... + 3462191671.

It is an arithmetic number, because the mean of its divisors is an integer number (13177280536560).

Almost surely, 2^{667606214307415} is an apocalyptic number.

667606214307415 is a deficient number, since it is larger than the sum of its proper divisors (175739740032425).

667606214307415 is a wasteful number, since it uses less digits than its factorization.

667606214307415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194104.

The product of its (nonzero) digits is 30481920, while the sum is 58.

The spelling of 667606214307415 in words is "six hundred sixty-seven trillion, six hundred six billion, two hundred fourteen million, three hundred seven thousand, four hundred fifteen".