166275543204256 has 12 divisors (see below), whose sum is σ = 327354975683442. Its totient is φ = 83137771602112.

The previous prime is 166275543204233. The next prime is 166275543204301. The reversal of 166275543204256 is 652402345572661.

It can be written as a sum of positive squares in only one way, i.e., 125402281235856 + 40873261968400 = 11198316^2 + 6393220^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 166275543204256.

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 as a sum of consecutive naturals, namely, 2598055362535 + ... + 2598055362598.

Almost surely, 2^{166275543204256} is an apocalyptic number.

166275543204256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

166275543204256 is a deficient number, since it is larger than the sum of its proper divisors (161079432479186).

166275543204256 is an equidigital number, since it uses as much as digits as its factorization.

166275543204256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5196110725143 (or 5196110725135 counting only the distinct ones).

The product of its (nonzero) digits is 72576000, while the sum is 58.

The spelling of 166275543204256 in words is "one hundred sixty-six trillion, two hundred seventy-five billion, five hundred forty-three million, two hundred four thousand, two hundred fifty-six".