66064033 has 4 divisors (see below), whose sum is σ = 75501760. Its totient is φ = 56626308.

The previous prime is 66063983. The next prime is 66064043. The reversal of 66064033 is 33046066.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33046066 = 2 ⋅16523033.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66064033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66063992 and 66064010.

It is not an unprimeable number, because it can be changed into a prime (66064043) 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, 4718853 + ... + 4718866.

It is an arithmetic number, because the mean of its divisors is an integer number (18875440).

Almost surely, 2^66064033 is an apocalyptic number.

It is an amenable number.

66064033 is a deficient number, since it is larger than the sum of its proper divisors (9437727).

66064033 is an equidigital number, since it uses as much as digits as its factorization.

66064033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9437726.

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 66064033 is about 8127.9784079438. The cubic root of 66064033 is about 404.2546531130.

The spelling of 66064033 in words is "sixty-six million, sixty-four thousand, thirty-three".