66033337 has 12 divisors (see below), whose sum is σ = 68693184. Its totient is φ = 63462840.

The previous prime is 66033311. The next prime is 66033343. The reversal of 66033337 is 73333066.

It is not a de Polignac number, because 66033337 - 2¹⁵ = 66000569 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66033299 and 66033308.

It is not an unprimeable number, because it can be changed into a prime (66033307) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 131028 + ... + 131530.

It is an arithmetic number, because the mean of its divisors is an integer number (5724432).

Almost surely, 2^66033337 is an apocalyptic number.

It is an amenable number.

66033337 is a deficient number, since it is larger than the sum of its proper divisors (2659847).

66033337 is an equidigital number, since it uses as much as digits as its factorization.

66033337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660 (or 617 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 31.

The square root of 66033337 is about 8126.0898961309. The cubic root of 66033337 is about 404.1920324369.

The spelling of 66033337 in words is "sixty-six million, thirty-three thousand, three hundred thirty-seven".