44512165021 has 8 divisors (see below), whose sum is σ = 46229936384. Its totient is φ = 42812012160.

The previous prime is 44512164997. The next prime is 44512165031. The reversal of 44512165021 is 12056121544.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 44512165021 - 2¹¹ = 44512162973 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44512165031) 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, 4399476 + ... + 4409581.

It is an arithmetic number, because the mean of its divisors is an integer number (5778742048).

Almost surely, 2^44512165021 is an apocalyptic number.

It is an amenable number.

44512165021 is a deficient number, since it is larger than the sum of its proper divisors (1717771363).

44512165021 is a wasteful number, since it uses less digits than its factorization.

44512165021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8809251.

The product of its (nonzero) digits is 9600, while the sum is 31.

Adding to 44512165021 its reverse (12056121544), we get a palindrome (56568286565).

The spelling of 44512165021 in words is "forty-four billion, five hundred twelve million, one hundred sixty-five thousand, twenty-one".