66033457 has 16 divisors (see below), whose sum is σ = 80134272. Its totient is φ = 53118720.

The previous prime is 66033433. The next prime is 66033481. The reversal of 66033457 is 75433066.

It is an interprime number because it is at equal distance from previous prime (66033433) and next prime (66033481).

It is a cyclic number.

It is not a de Polignac number, because 66033457 - 2²³ = 57644849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66033427) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 61707 + ... + 62767.

It is an arithmetic number, because the mean of its divisors is an integer number (5008392).

Almost surely, 2^66033457 is an apocalyptic number.

It is an amenable number.

66033457 is a deficient number, since it is larger than the sum of its proper divisors (14100815).

66033457 is a wasteful number, since it uses less digits than its factorization.

66033457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608.

The product of its (nonzero) digits is 45360, while the sum is 34.

The square root of 66033457 is about 8126.0972797524. The cubic root of 66033457 is about 404.1922772779.

The spelling of 66033457 in words is "sixty-six million, thirty-three thousand, four hundred fifty-seven".