44555566660 has 48 divisors (see below), whose sum is σ = 104244537600. Its totient is φ = 15857296640.

The previous prime is 44555566603. The next prime is 44555566661. The reversal of 44555566660 is 6666555544.

It is a junction number, because it is equal to n+sod(n) for n = 44555566598 and 44555566607.

It is not an unprimeable number, because it can be changed into a prime (44555566661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2144185 + ... + 2164864.

It is an arithmetic number, because the mean of its divisors is an integer number (2171761200).

Almost surely, 2^44555566660 is an apocalyptic number.

It is an amenable number.

44555566660 is an abundant number, since it is smaller than the sum of its proper divisors (59688970940).

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

44555566660 is a wasteful number, since it uses less digits than its factorization.

44555566660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4309116 (or 4309114 counting only the distinct ones).

The product of its (nonzero) digits is 12960000, while the sum is 52.

It can be divided in two parts, 445555 and 66660, that added together give a palindrome (512215).

The spelling of 44555566660 in words is "forty-four billion, five hundred fifty-five million, five hundred sixty-six thousand, six hundred sixty".