166545563336413 has 8 divisors (see below), whose sum is σ = 170366555950848. Its totient is φ = 162736131971664.

The previous prime is 166545563336393. The next prime is 166545563336417. The reversal of 166545563336413 is 314633365545661.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166545563336413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166545563336417) 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, 2890283281 + ... + 2890340902.

It is an arithmetic number, because the mean of its divisors is an integer number (21295819493856).

Almost surely, 2^{166545563336413} is an apocalyptic number.

It is an amenable number.

166545563336413 is a deficient number, since it is larger than the sum of its proper divisors (3820992614435).

166545563336413 is an equidigital number, since it uses as much as digits as its factorization.

166545563336413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5780624843.

The product of its digits is 209952000, while the sum is 61.

The spelling of 166545563336413 in words is "one hundred sixty-six trillion, five hundred forty-five billion, five hundred sixty-three million, three hundred thirty-six thousand, four hundred thirteen".