1668672675251 has 8 divisors (see below), whose sum is σ = 1672906841760. Its totient is φ = 1664440478208.

The previous prime is 1668672675199. The next prime is 1668672675289. The reversal of 1668672675251 is 1525762768661.

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 1668672675251 - 2¹⁴ = 1668672658867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1668672675751) 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, 1211795 + ... + 2192211.

It is an arithmetic number, because the mean of its divisors is an integer number (209113355220).

Almost surely, 2^{1668672675251} is an apocalyptic number.

1668672675251 is a deficient number, since it is larger than the sum of its proper divisors (4234166509).

1668672675251 is an equidigital number, since it uses as much as digits as its factorization.

1668672675251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984733.

The product of its digits is 50803200, while the sum is 62.

The spelling of 1668672675251 in words is "one trillion, six hundred sixty-eight billion, six hundred seventy-two million, six hundred seventy-five thousand, two hundred fifty-one".