44131665551 has 8 divisors (see below), whose sum is σ = 44381120784. Its totient is φ = 43882813440.

The previous prime is 44131665521. The next prime is 44131665581. The reversal of 44131665551 is 15556613144.

It is an interprime number because it is at equal distance from previous prime (44131665521) and next prime (44131665581).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44131665551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 44131665499 and 44131665508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44131665511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3620 + ... + 297113.

It is an arithmetic number, because the mean of its divisors is an integer number (5547640098).

Almost surely, 2^44131665551 is an apocalyptic number.

44131665551 is a deficient number, since it is larger than the sum of its proper divisors (249455233).

44131665551 is a wasteful number, since it uses less digits than its factorization.

44131665551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301561.

The product of its digits is 216000, while the sum is 41.

The spelling of 44131665551 in words is "forty-four billion, one hundred thirty-one million, six hundred sixty-five thousand, five hundred fifty-one".