166700362201546 has 4 divisors (see below), whose sum is σ = 250050543302322. Its totient is φ = 83350181100772.

The previous prime is 166700362201519. The next prime is 166700362201547. The reversal of 166700362201546 is 645102263007661.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 138983138170321 + 27717224031225 = 11789111^2 + 5264715^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 166700362201546.

It is not an unprimeable number, because it can be changed into a prime (166700362201547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41675090550385 + ... + 41675090550388.

Almost surely, 2^{166700362201546} is an apocalyptic number.

166700362201546 is a deficient number, since it is larger than the sum of its proper divisors (83350181100776).

166700362201546 is an equidigital number, since it uses as much as digits as its factorization.

166700362201546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83350181100775.

The product of its (nonzero) digits is 2177280, while the sum is 49.

The spelling of 166700362201546 in words is "one hundred sixty-six trillion, seven hundred billion, three hundred sixty-two million, two hundred one thousand, five hundred forty-six".