66033441 has 16 divisors (see below), whose sum is σ = 100984320. Its totient is φ = 42601680.

The previous prime is 66033433. The next prime is 66033481. The reversal of 66033441 is 14433066.

It is not a de Polignac number, because 66033441 - 2³ = 66033433 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (66033481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38610 + ... + 40283.

It is an arithmetic number, because the mean of its divisors is an integer number (6311520).

Almost surely, 2^66033441 is an apocalyptic number.

It is an amenable number.

66033441 is a deficient number, since it is larger than the sum of its proper divisors (34950879).

66033441 is a wasteful number, since it uses less digits than its factorization.

66033441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78933 (or 78927 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 66033441 is about 8126.0962952699. The cubic root of 66033441 is about 404.1922446325.

The spelling of 66033441 in words is "sixty-six million, thirty-three thousand, four hundred forty-one".