66254441 has 8 divisors (see below), whose sum is σ = 72980544. Its totient is φ = 59645520.

The previous prime is 66254437. The next prime is 66254453. The reversal of 66254441 is 14445266.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 66254441 - 2² = 66254437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66254398 and 66254407.

It is not an unprimeable number, because it can be changed into a prime (66254141) 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 7 ways as a sum of consecutive naturals, for example, 28106 + ... + 30371.

It is an arithmetic number, because the mean of its divisors is an integer number (9122568).

Almost surely, 2^66254441 is an apocalyptic number.

It is an amenable number.

66254441 is a deficient number, since it is larger than the sum of its proper divisors (6726103).

66254441 is a wasteful number, since it uses less digits than its factorization.

66254441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58591.

The product of its digits is 23040, while the sum is 32.

The square root of 66254441 is about 8139.6831019395. The cubic root of 66254441 is about 404.6426579245.

The spelling of 66254441 in words is "sixty-six million, two hundred fifty-four thousand, four hundred forty-one".