1155346422165 has 144 divisors (see below), whose sum is σ = 2313247966848. Its totient is φ = 530122586112.

The previous prime is 1155346422163. The next prime is 1155346422193. The reversal of 1155346422165 is 5612246435511.

1155346422165 is a `hidden beast` number, since 1 + 1 + 5 + 5 + 3 + 464 + 22 + 165 = 666.

It is not a de Polignac number, because 1155346422165 - 2¹ = 1155346422163 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 1155346422165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155346422161) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 17380522 + ... + 17446868.

It is an arithmetic number, because the mean of its divisors is an integer number (16064221992).

Almost surely, 2^{1155346422165} is an apocalyptic number.

1155346422165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1155346422165 is an abundant number, since it is smaller than the sum of its proper divisors (1157901544683).

1155346422165 is a wasteful number, since it uses less digits than its factorization.

1155346422165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66508 (or 66488 counting only the distinct ones).

The product of its digits is 864000, while the sum is 45.

The spelling of 1155346422165 in words is "one trillion, one hundred fifty-five billion, three hundred forty-six million, four hundred twenty-two thousand, one hundred sixty-five".