4221352005165 has 48 divisors (see below), whose sum is σ = 7329811245120. Its totient is φ = 2247450324480.

The previous prime is 4221352005151. The next prime is 4221352005271. The reversal of 4221352005165 is 5615002531224.

4221352005165 is a `hidden beast` number, since 4 + 2 + 2 + 135 + 2 + 0 + 0 + 516 + 5 = 666.

It is not a de Polignac number, because 4221352005165 - 2⁵ = 4221352005133 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 196139605 + ... + 196161125.

It is an arithmetic number, because the mean of its divisors is an integer number (152704400940).

Almost surely, 2^{4221352005165} is an apocalyptic number.

4221352005165 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4221352005165 is a deficient number, since it is larger than the sum of its proper divisors (3108459239955).

4221352005165 is a wasteful number, since it uses less digits than its factorization.

4221352005165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28954 (or 28951 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 4221352005165 its reverse (5615002531224), we get a palindrome (9836354536389).

The spelling of 4221352005165 in words is "four trillion, two hundred twenty-one billion, three hundred fifty-two million, five thousand, one hundred sixty-five".