166033057 has 8 divisors (see below), whose sum is σ = 168008456. Its totient is φ = 164063232.

The previous prime is 166033037. The next prime is 166033079. The reversal of 166033057 is 750330661.

It can be written as a sum of positive squares in 4 ways, for example, as 48874081 + 117158976 = 6991^2 + 10824^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 166033057 - 2¹⁹ = 165508769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166033027) 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, 99373 + ... + 101029.

It is an arithmetic number, because the mean of its divisors is an integer number (21001057).

Almost surely, 2^166033057 is an apocalyptic number.

It is an amenable number.

166033057 is a deficient number, since it is larger than the sum of its proper divisors (1975399).

166033057 is a wasteful number, since it uses less digits than its factorization.

166033057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2787.

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 166033057 is about 12885.3815232612. The cubic root of 166033057 is about 549.6229448729.

The spelling of 166033057 in words is "one hundred sixty-six million, thirty-three thousand, fifty-seven".