667741017607 has 8 divisors (see below), whose sum is σ = 680101606800. Its totient is φ = 655488381504.

The previous prime is 667741017589. The next prime is 667741017623. The reversal of 667741017607 is 706710147766.

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 667741017607 - 2³⁹ = 117985203719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667741017107) 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, 26975788 + ... + 27000529.

It is an arithmetic number, because the mean of its divisors is an integer number (85012700850).

Almost surely, 2^667741017607 is an apocalyptic number.

667741017607 is a deficient number, since it is larger than the sum of its proper divisors (12360589193).

667741017607 is a wasteful number, since it uses less digits than its factorization.

667741017607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53976545.

The product of its (nonzero) digits is 2074464, while the sum is 52.

The spelling of 667741017607 in words is "six hundred sixty-seven billion, seven hundred forty-one million, seventeen thousand, six hundred seven".