66266442444 has 48 divisors (see below), whose sum is σ = 155972284160. Its totient is φ = 21896360640.

The previous prime is 66266442439. The next prime is 66266442461. The reversal of 66266442444 is 44424466266.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 66266442393 and 66266442402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1072497 + ... + 1132599.

Almost surely, 2^66266442444 is an apocalyptic number.

It is an amenable number.

66266442444 is an abundant number, since it is smaller than the sum of its proper divisors (89705841716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66266442444 is a wasteful number, since it uses less digits than its factorization.

66266442444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60910 (or 60908 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 48.

The spelling of 66266442444 in words is "sixty-six billion, two hundred sixty-six million, four hundred forty-two thousand, four hundred forty-four".