66012441 has 32 divisors (see below), whose sum is σ = 101990400. Its totient is φ = 37558080.

The previous prime is 66012433. The next prime is 66012451. The reversal of 66012441 is 14421066.

It is not a de Polignac number, because 66012441 - 2³ = 66012433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66012451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79215 + ... + 80043.

It is an arithmetic number, because the mean of its divisors is an integer number (3187200).

Almost surely, 2^66012441 is an apocalyptic number.

It is an amenable number.

66012441 is a deficient number, since it is larger than the sum of its proper divisors (35977959).

66012441 is a wasteful number, since it uses less digits than its factorization.

66012441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 66012441 is about 8124.8040591758. The cubic root of 66012441 is about 404.1493929250.

The spelling of 66012441 in words is "sixty-six million, twelve thousand, four hundred forty-one".