44166304661 has 4 divisors (see below), whose sum is σ = 44484048000. Its totient is φ = 43848561324.

The previous prime is 44166304649. The next prime is 44166304697. The reversal of 44166304661 is 16640366144.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 44166304661 - 2⁶ = 44166304597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44166304621) 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, 158871461 + ... + 158871738.

It is an arithmetic number, because the mean of its divisors is an integer number (11121012000).

Almost surely, 2^44166304661 is an apocalyptic number.

It is an amenable number.

44166304661 is a deficient number, since it is larger than the sum of its proper divisors (317743339).

44166304661 is a wasteful number, since it uses less digits than its factorization.

44166304661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317743338.

The product of its (nonzero) digits is 248832, while the sum is 41.

The spelling of 44166304661 in words is "forty-four billion, one hundred sixty-six million, three hundred four thousand, six hundred sixty-one".