667647337373 has 8 divisors (see below), whose sum is σ = 694214895360. Its totient is φ = 641394188640.

The previous prime is 667647337367. The next prime is 667647337387. The reversal of 667647337373 is 373733746766.

It is a happy number.

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 667647337373 - 2³² = 663352370077 is a prime.

It is a super-2 number, since 2×667647337373² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667647333373) 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 7 ways as a sum of consecutive naturals, for example, 78597983 + ... + 78606476.

It is an arithmetic number, because the mean of its divisors is an integer number (86776861920).

Almost surely, 2^667647337373 is an apocalyptic number.

It is an amenable number.

667647337373 is a deficient number, since it is larger than the sum of its proper divisors (26567557987).

667647337373 is a wasteful number, since it uses less digits than its factorization.

667647337373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157204627.

The product of its digits is 168031584, while the sum is 62.

The spelling of 667647337373 in words is "six hundred sixty-seven billion, six hundred forty-seven million, three hundred thirty-seven thousand, three hundred seventy-three".