667707068733 has 8 divisors (see below), whose sum is σ = 891000487200. Its totient is φ = 444775848048.

The previous prime is 667707068711. The next prime is 667707068761. The reversal of 667707068733 is 337860707766.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-667707068733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667707068033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90545143 + ... + 90552516.

It is an arithmetic number, because the mean of its divisors is an integer number (111375060900).

Almost surely, 2^667707068733 is an apocalyptic number.

It is an amenable number.

667707068733 is a deficient number, since it is larger than the sum of its proper divisors (223293418467).

667707068733 is a wasteful number, since it uses less digits than its factorization.

667707068733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181098891.

The product of its (nonzero) digits is 37340352, while the sum is 60.

The spelling of 667707068733 in words is "six hundred sixty-seven billion, seven hundred seven million, sixty-eight thousand, seven hundred thirty-three".