1145063221165 has 16 divisors (see below), whose sum is σ = 1382419519488. Its totient is φ = 910489060096.

The previous prime is 1145063221129. The next prime is 1145063221231. The reversal of 1145063221165 is 5611223605411.

It is a cyclic number.

It is not a de Polignac number, because 1145063221165 - 2³³ = 1136473286573 is a prime.

It is a super-2 number, since 2×1145063221165² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11266164 + ... + 11367346.

It is an arithmetic number, because the mean of its divisors is an integer number (86401219968).

Almost surely, 2^{1145063221165} is an apocalyptic number.

It is an amenable number.

1145063221165 is a deficient number, since it is larger than the sum of its proper divisors (237356298323).

1145063221165 is a wasteful number, since it uses less digits than its factorization.

1145063221165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114908.

The product of its (nonzero) digits is 43200, while the sum is 37.

Adding to 1145063221165 its reverse (5611223605411), we get a palindrome (6756286826576).

The spelling of 1145063221165 in words is "one trillion, one hundred forty-five billion, sixty-three million, two hundred twenty-one thousand, one hundred sixty-five".