44451222245145 has 56 divisors (see below), whose sum is σ = 80217235021632. Its totient is φ = 23635694570400.

The previous prime is 44451222245141. The next prime is 44451222245197. The reversal of 44451222245145 is 54154222215444.

44451222245145 is a `hidden beast` number, since 4 + 4 + 4 + 5 + 122 + 2 + 2 + 4 + 514 + 5 = 666.

It is not a de Polignac number, because 44451222245145 - 2² = 44451222245141 is a prime.

It is a super-2 number, since 2×44451222245145² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 44451222245145.

It is not an unprimeable number, because it can be changed into a prime (44451222245141) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 17215141 + ... + 19628130.

Almost surely, 2^{44451222245145} is an apocalyptic number.

44451222245145 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

44451222245145 is a deficient number, since it is larger than the sum of its proper divisors (35766012776487).

44451222245145 is an equidigital number, since it uses as much as digits as its factorization.

44451222245145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36843625 (or 36843610 counting only the distinct ones).

The product of its digits is 2048000, while the sum is 45.

The spelling of 44451222245145 in words is "forty-four trillion, four hundred fifty-one billion, two hundred twenty-two million, two hundred forty-five thousand, one hundred forty-five".