166424333556 has 48 divisors (see below), whose sum is σ = 418710450368. Its totient is φ = 51144307200.

The previous prime is 166424333533. The next prime is 166424333617. The reversal of 166424333556 is 655333424661.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 531205 + ... + 784236.

Almost surely, 2^166424333556 is an apocalyptic number.

It is an amenable number.

166424333556 is an abundant number, since it is smaller than the sum of its proper divisors (252286116812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166424333556 is a wasteful number, since it uses less digits than its factorization.

166424333556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1316272 (or 1316270 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 48.

The spelling of 166424333556 in words is "one hundred sixty-six billion, four hundred twenty-four million, three hundred thirty-three thousand, five hundred fifty-six".