1122665646543 has 48 divisors (see below), whose sum is σ = 1847556449280. Its totient is φ = 602525409024.

The previous prime is 1122665646503. The next prime is 1122665646563. The reversal of 1122665646543 is 3456465662211.

It is not a de Polignac number, because 1122665646543 - 2⁹ = 1122665646031 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122665646503) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 728080 + ... + 1665962.

It is an arithmetic number, because the mean of its divisors is an integer number (38490759360).

Almost surely, 2^{1122665646543} is an apocalyptic number.

1122665646543 is a deficient number, since it is larger than the sum of its proper divisors (724890802737).

1122665646543 is a wasteful number, since it uses less digits than its factorization.

1122665646543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938396 (or 938389 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 51.

The spelling of 1122665646543 in words is "one trillion, one hundred twenty-two billion, six hundred sixty-five million, six hundred forty-six thousand, five hundred forty-three".