445243502155 has 8 divisors (see below), whose sum is σ = 534465187200. Its totient is φ = 356079478656.

The previous prime is 445243502149. The next prime is 445243502191. The reversal of 445243502155 is 551205342544.

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 445243502155 - 2¹⁹ = 445242977867 is a prime.

It is a super-2 number, since 2×445243502155² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14398395 + ... + 14429284.

It is an arithmetic number, because the mean of its divisors is an integer number (66808148400).

Almost surely, 2^445243502155 is an apocalyptic number.

445243502155 is a deficient number, since it is larger than the sum of its proper divisors (89221685045).

445243502155 is a wasteful number, since it uses less digits than its factorization.

445243502155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28830773.

The product of its (nonzero) digits is 480000, while the sum is 40.

Adding to 445243502155 its reverse (551205342544), we get a palindrome (996448844699).

The spelling of 445243502155 in words is "four hundred forty-five billion, two hundred forty-three million, five hundred two thousand, one hundred fifty-five".