166033097 has 4 divisors (see below), whose sum is σ = 170520516. Its totient is φ = 161545680.

The previous prime is 166033081. The next prime is 166033099. The reversal of 166033097 is 790330661.

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

It can be written as a sum of positive squares in 2 ways, for example, as 122855056 + 43178041 = 11084^2 + 6571^2 .

It is a cyclic number.

It is not a de Polignac number, because 166033097 - 2⁴ = 166033081 is a prime.

It is a super-2 number, since 2×166033097² = 55133978598822818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166033099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2243654 + ... + 2243727.

It is an arithmetic number, because the mean of its divisors is an integer number (42630129).

Almost surely, 2^166033097 is an apocalyptic number.

It is an amenable number.

166033097 is a deficient number, since it is larger than the sum of its proper divisors (4487419).

166033097 is an equidigital number, since it uses as much as digits as its factorization.

166033097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4487418.

The product of its (nonzero) digits is 20412, while the sum is 35.

The square root of 166033097 is about 12885.3830754076. The cubic root of 166033097 is about 549.6229890105.

The spelling of 166033097 in words is "one hundred sixty-six million, thirty-three thousand, ninety-seven".