1668670367 has 8 divisors (see below), whose sum is σ = 2053748256. Its totient is φ = 1320266592.

The previous prime is 1668670327. The next prime is 1668670379. The reversal of 1668670367 is 7630768661.

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 1668670367 - 2¹² = 1668666271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1668670327) 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, 9168428 + ... + 9168609.

It is an arithmetic number, because the mean of its divisors is an integer number (256718532).

Almost surely, 2^1668670367 is an apocalyptic number.

1668670367 is a deficient number, since it is larger than the sum of its proper divisors (385077889).

1668670367 is a wasteful number, since it uses less digits than its factorization.

1668670367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18337057.

The product of its (nonzero) digits is 1524096, while the sum is 50.

The square root of 1668670367 is about 40849.3618922010. The cubic root of 1668670367 is about 1186.1060411068.

The spelling of 1668670367 in words is "one billion, six hundred sixty-eight million, six hundred seventy thousand, three hundred sixty-seven".