667101071 has 8 divisors (see below), whose sum is σ = 821047584. Its totient is φ = 527816160.

The previous prime is 667101067. The next prime is 667101073. The reversal of 667101071 is 170101766.

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 667101071 - 2² = 667101067 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667101073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3665300 + ... + 3665481.

It is an arithmetic number, because the mean of its divisors is an integer number (102630948).

Almost surely, 2^667101071 is an apocalyptic number.

667101071 is a deficient number, since it is larger than the sum of its proper divisors (153946513).

667101071 is a wasteful number, since it uses less digits than its factorization.

667101071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7330801.

The product of its (nonzero) digits is 1764, while the sum is 29.

The square root of 667101071 is about 25828.2998085433. The cubic root of 667101071 is about 873.7701671082.

The spelling of 667101071 in words is "six hundred sixty-seven million, one hundred one thousand, seventy-one".