1668226546263 has 8 divisors (see below), whose sum is σ = 2266270025328. Its totient is φ = 1091167049024.

The previous prime is 1668226546223. The next prime is 1668226546277. The reversal of 1668226546263 is 3626456228661.

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 1668226546263 - 2¹⁰ = 1668226545239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1668226546223) 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, 5245995270 + ... + 5245995587.

It is an arithmetic number, because the mean of its divisors is an integer number (283283753166).

Almost surely, 2^{1668226546263} is an apocalyptic number.

1668226546263 is a deficient number, since it is larger than the sum of its proper divisors (598043479065).

1668226546263 is a wasteful number, since it uses less digits than its factorization.

1668226546263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10491990913.

The product of its digits is 29859840, while the sum is 57.

The spelling of 1668226546263 in words is "one trillion, six hundred sixty-eight billion, two hundred twenty-six million, five hundred forty-six thousand, two hundred sixty-three".