44150443555221 has 48 divisors (see below), whose sum is σ = 67876346354544. Its totient is φ = 27558111639552.

The previous prime is 44150443555217. The next prime is 44150443555249. The reversal of 44150443555221 is 12255534405144.

44150443555221 is a `hidden beast` number, since 4 + 4 + 1 + 5 + 0 + 44 + 35 + 552 + 21 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 370862730225 + 43779580824996 = 608985^2 + 6616614^2 .

It is not a de Polignac number, because 44150443555221 - 2² = 44150443555217 is a prime.

It is a super-2 number, since 2×44150443555221² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44150443555271) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24085675 + ... + 25853831.

It is an arithmetic number, because the mean of its divisors is an integer number (1414090549053).

Almost surely, 2^{44150443555221} is an apocalyptic number.

It is an amenable number.

44150443555221 is a deficient number, since it is larger than the sum of its proper divisors (23725902799323).

44150443555221 is a wasteful number, since it uses less digits than its factorization.

44150443555221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1769030 (or 1769027 counting only the distinct ones).

The product of its (nonzero) digits is 1920000, while the sum is 45.

The spelling of 44150443555221 in words is "forty-four trillion, one hundred fifty billion, four hundred forty-three million, five hundred fifty-five thousand, two hundred twenty-one".