667373340737 has 4 divisors (see below), whose sum is σ = 667559709396. Its totient is φ = 667186972080.

The previous prime is 667373340713. The next prime is 667373340757. The reversal of 667373340737 is 737043373766.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 515924721841 + 151448618896 = 718279^2 + 389164^2 .

It is a cyclic number.

It is not a de Polignac number, because 667373340737 - 2¹⁴ = 667373324353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (667373340757) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93178958 + ... + 93186119.

It is an arithmetic number, because the mean of its divisors is an integer number (166889927349).

Almost surely, 2^667373340737 is an apocalyptic number.

It is an amenable number.

667373340737 is a deficient number, since it is larger than the sum of its proper divisors (186368659).

667373340737 is a wasteful number, since it uses less digits than its factorization.

667373340737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186368658.

The product of its (nonzero) digits is 28005264, while the sum is 56.

The spelling of 667373340737 in words is "six hundred sixty-seven billion, three hundred seventy-three million, three hundred forty thousand, seven hundred thirty-seven".