33664157 has 16 divisors (see below), whose sum is σ = 37255680. Its totient is φ = 30307200.

The previous prime is 33664151. The next prime is 33664159. The reversal of 33664157 is 75146633.

It is not a de Polignac number, because 33664157 - 2⁶ = 33664093 is a prime.

It is a super-2 number, since 2×33664157² = 2266550933041298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33664151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26732 + ... + 27962.

It is an arithmetic number, because the mean of its divisors is an integer number (2328480).

Almost surely, 2^33664157 is an apocalyptic number.

It is an amenable number.

33664157 is a deficient number, since it is larger than the sum of its proper divisors (3591523).

33664157 is a wasteful number, since it uses less digits than its factorization.

33664157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1324.

The product of its digits is 45360, while the sum is 35.

The square root of 33664157 is about 5802.0821262716. The cubic root of 33664157 is about 322.8909810459.

The spelling of 33664157 in words is "thirty-three million, six hundred sixty-four thousand, one hundred fifty-seven".