4221832265145 has 72 divisors (see below), whose sum is σ = 8044915624200. Its totient is φ = 2046608847360.

The previous prime is 4221832265141. The next prime is 4221832265149. The reversal of 4221832265145 is 5415622381224.

4221832265145 is a `hidden beast` number, since 4 + 2 + 218 + 32 + 265 + 145 = 666.

It is an interprime number because it is at equal distance from previous prime (4221832265141) and next prime (4221832265149).

It can be written as a sum of positive squares in 4 ways, for example, as 2359655437689 + 1862176827456 = 1536117^2 + 1364616^2 .

It is not a de Polignac number, because 4221832265145 - 2² = 4221832265141 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 4221832265145.

It is not an unprimeable number, because it can be changed into a prime (4221832265141) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 34400151 + ... + 34522659.

It is an arithmetic number, because the mean of its divisors is an integer number (111734939225).

Almost surely, 2^{4221832265145} is an apocalyptic number.

4221832265145 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4221832265145 is a deficient number, since it is larger than the sum of its proper divisors (3823083359055).

4221832265145 is a wasteful number, since it uses less digits than its factorization.

4221832265145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128871 (or 128857 counting only the distinct ones).

The product of its digits is 921600, while the sum is 45.

The spelling of 4221832265145 in words is "four trillion, two hundred twenty-one billion, eight hundred thirty-two million, two hundred sixty-five thousand, one hundred forty-five".