1665336164351 has 8 divisors (see below), whose sum is σ = 1710365657280. Its totient is φ = 1620307745568.

The previous prime is 1665336164329. The next prime is 1665336164357. The reversal of 1665336164351 is 1534616335661.

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 1665336164351 - 2²⁶ = 1665269055487 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1665336164351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1665336164357) 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, 3628445 + ... + 4061561.

It is an arithmetic number, because the mean of its divisors is an integer number (213795707160).

Almost surely, 2^{1665336164351} is an apocalyptic number.

1665336164351 is a deficient number, since it is larger than the sum of its proper divisors (45029492929).

1665336164351 is a wasteful number, since it uses less digits than its factorization.

1665336164351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537073.

The product of its digits is 3499200, while the sum is 50.

The spelling of 1665336164351 in words is "one trillion, six hundred sixty-five billion, three hundred thirty-six million, one hundred sixty-four thousand, three hundred fifty-one".