667367340737 has 8 divisors (see below), whose sum is σ = 668313240936. Its totient is φ = 666421863552.

The previous prime is 667367340691. The next prime is 667367340743. The reversal of 667367340737 is 737043763766.

It can be written as a sum of positive squares in 4 ways, for example, as 118003242256 + 549364098481 = 343516^2 + 741191^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 667367340737 - 2¹⁸ = 667367078593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (667367340037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3121253 + ... + 3328205.

It is an arithmetic number, because the mean of its divisors is an integer number (83539155117).

Almost surely, 2^667367340737 is an apocalyptic number.

It is an amenable number.

667367340737 is a deficient number, since it is larger than the sum of its proper divisors (945900199).

667367340737 is a wasteful number, since it uses less digits than its factorization.

667367340737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211507.

The product of its (nonzero) digits is 56010528, while the sum is 59.

The spelling of 667367340737 in words is "six hundred sixty-seven billion, three hundred sixty-seven million, three hundred forty thousand, seven hundred thirty-seven".