166633402 has 8 divisors (see below), whose sum is σ = 269177076. Its totient is φ = 76907712.

The previous prime is 166633393. The next prime is 166633421. The reversal of 166633402 is 204336661.

It can be written as a sum of positive squares in 2 ways, for example, as 139499721 + 27133681 = 11811^2 + 5209^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3204463 + ... + 3204514.

Almost surely, 2^166633402 is an apocalyptic number.

166633402 is a deficient number, since it is larger than the sum of its proper divisors (102543674).

166633402 is a wasteful number, since it uses less digits than its factorization.

166633402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6408992.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 166633402 is about 12908.6560880674. The cubic root of 166633402 is about 550.2845932099.

The spelling of 166633402 in words is "one hundred sixty-six million, six hundred thirty-three thousand, four hundred two".