168337220645 has 8 divisors (see below), whose sum is σ = 220368725280. Its totient is φ = 122427069520.

The previous prime is 168337220573. The next prime is 168337220659. The reversal of 168337220645 is 546022733861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 168337220645 - 2¹⁴ = 168337204261 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 168337220645.

It is a congruent number.

It is an unprimeable number.

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, 1530338315 + ... + 1530338424.

It is an arithmetic number, because the mean of its divisors is an integer number (27546090660).

Almost surely, 2^168337220645 is an apocalyptic number.

It is an amenable number.

168337220645 is a deficient number, since it is larger than the sum of its proper divisors (52031504635).

168337220645 is a wasteful number, since it uses less digits than its factorization.

168337220645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3060676755.

The product of its (nonzero) digits is 1451520, while the sum is 47.

The spelling of 168337220645 in words is "one hundred sixty-eight billion, three hundred thirty-seven million, two hundred twenty thousand, six hundred forty-five".