44136513666 has 24 divisors (see below), whose sum is σ = 109290415104. Its totient is φ = 12610432440.

The previous prime is 44136513563. The next prime is 44136513679. The reversal of 44136513666 is 66631563144.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 175144770 + ... + 175145021.

It is an arithmetic number, because the mean of its divisors is an integer number (4553767296).

Almost surely, 2^44136513666 is an apocalyptic number.

44136513666 is an abundant number, since it is smaller than the sum of its proper divisors (65153901438).

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

44136513666 is a wasteful number, since it uses less digits than its factorization.

44136513666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350289806 (or 350289803 counting only the distinct ones).

The product of its digits is 933120, while the sum is 45.

The spelling of 44136513666 in words is "forty-four billion, one hundred thirty-six million, five hundred thirteen thousand, six hundred sixty-six".