66533344 has 12 divisors (see below), whose sum is σ = 130987584. Its totient is φ = 33266656.

The previous prime is 66533339. The next prime is 66533351. The reversal of 66533344 is 44333566.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1039552 + ... + 1039615.

It is an arithmetic number, because the mean of its divisors is an integer number (10915632).

Almost surely, 2^66533344 is an apocalyptic number.

It is an amenable number.

66533344 is a deficient number, since it is larger than the sum of its proper divisors (64454240).

66533344 is a wasteful number, since it uses less digits than its factorization.

66533344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2079177 (or 2079169 counting only the distinct ones).

The product of its digits is 77760, while the sum is 34.

The square root of 66533344 is about 8156.7974107489. The cubic root of 66533344 is about 405.2096541901.

The spelling of 66533344 in words is "sixty-six million, five hundred thirty-three thousand, three hundred forty-four".