667367153600663 has 4 divisors (see below), whose sum is σ = 667367765600760. Its totient is φ = 667366541600568.

The previous prime is 667367153600657. The next prime is 667367153600689. The reversal of 667367153600663 is 366006351763766.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 667367153600663 - 2¹⁴ = 667367153584279 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 667367153600663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667367153600263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 304361420 + ... + 306546257.

It is an arithmetic number, because the mean of its divisors is an integer number (166841941400190).

Almost surely, 2^{667367153600663} is an apocalyptic number.

667367153600663 is a deficient number, since it is larger than the sum of its proper divisors (612000097).

667367153600663 is a wasteful number, since it uses less digits than its factorization.

667367153600663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612000096.

The product of its (nonzero) digits is 308629440, while the sum is 65.

The spelling of 667367153600663 in words is "six hundred sixty-seven trillion, three hundred sixty-seven billion, one hundred fifty-three million, six hundred thousand, six hundred sixty-three".