667376535356027 has 16 divisors (see below), whose sum is σ = 793245556930560. Its totient is φ = 549531296971488.

The previous prime is 667376535355969. The next prime is 667376535356053. The reversal of 667376535356027 is 720653535673766.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 667376535356027 - 2²⁰ = 667376534307451 is a prime.

It is a Smith number, since the sum of its digits (71) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (667376535355027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16308481943 + ... + 16308522864.

It is an arithmetic number, because the mean of its divisors is an integer number (49577847308160).

Almost surely, 2^{667376535356027} is an apocalyptic number.

667376535356027 is a deficient number, since it is larger than the sum of its proper divisors (125869021574533).

667376535356027 is a wasteful number, since it uses less digits than its factorization.

667376535356027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32617004930.

The product of its (nonzero) digits is 3000564000, while the sum is 71.

The spelling of 667376535356027 in words is "six hundred sixty-seven trillion, three hundred seventy-six billion, five hundred thirty-five million, three hundred fifty-six thousand, twenty-seven".