66459441 has 4 divisors (see below), whose sum is σ = 88612592. Its totient is φ = 44306292.

The previous prime is 66459431. The next prime is 66459469. The reversal of 66459441 is 14495466.

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.

It is not a de Polignac number, because 66459441 - 2¹¹ = 66457393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 66459441.

It is not an unprimeable number, because it can be changed into a prime (66459431) 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, 11076571 + ... + 11076576.

It is an arithmetic number, because the mean of its divisors is an integer number (22153148).

Almost surely, 2^66459441 is an apocalyptic number.

It is an amenable number.

66459441 is a deficient number, since it is larger than the sum of its proper divisors (22153151).

66459441 is a wasteful number, since it uses less digits than its factorization.

66459441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22153150.

The product of its digits is 103680, while the sum is 39.

The square root of 66459441 is about 8152.2660040016. The cubic root of 66459441 is about 405.0595675225.

The spelling of 66459441 in words is "sixty-six million, four hundred fifty-nine thousand, four hundred forty-one".