44642400066 has 48 divisors (see below), whose sum is σ = 108092039328. Its totient is φ = 13198046400.

The previous prime is 44642400059. The next prime is 44642400073. The reversal of 44642400066 is 66000424644.

It is a happy number.

44642400066 is a `hidden beast` number, since 4 + 4 + 642 + 4 + 0 + 0 + 0 + 6 + 6 = 666.

44642400066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (44642400059) and next prime (44642400073).

It is a self number, because there is not a number n which added to its sum of digits gives 44642400066.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2741476 + ... + 2757711.

It is an arithmetic number, because the mean of its divisors is an integer number (2251917486).

Almost surely, 2^44642400066 is an apocalyptic number.

44642400066 is an abundant number, since it is smaller than the sum of its proper divisors (63449639262).

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

44642400066 is a wasteful number, since it uses less digits than its factorization.

44642400066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5499247 (or 5499244 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

The spelling of 44642400066 in words is "forty-four billion, six hundred forty-two million, four hundred thousand, sixty-six".