445445221152 has 48 divisors (see below), whose sum is σ = 1177037410752. Its totient is φ = 147498412800.

The previous prime is 445445221103. The next prime is 445445221153. The reversal of 445445221152 is 251122544544.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 445445221152.

It is not an unprimeable number, because it can be changed into a prime (445445221153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15349923 + ... + 15378914.

It is an arithmetic number, because the mean of its divisors is an integer number (24521612724).

Almost surely, 2^445445221152 is an apocalyptic number.

It is an amenable number.

445445221152 is an abundant number, since it is smaller than the sum of its proper divisors (731592189600).

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

445445221152 is a wasteful number, since it uses less digits than its factorization.

445445221152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30729001 (or 30728993 counting only the distinct ones).

The product of its digits is 256000, while the sum is 39.

Adding to 445445221152 its reverse (251122544544), we get a palindrome (696567765696).

The spelling of 445445221152 in words is "four hundred forty-five billion, four hundred forty-five million, two hundred twenty-one thousand, one hundred fifty-two".