1202116656643 has 4 divisors (see below), whose sum is σ = 1373847607600. Its totient is φ = 1030385705688.

The previous prime is 1202116656641. The next prime is 1202116656647. The reversal of 1202116656643 is 3466566112021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1202116656643 - 2¹ = 1202116656641 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1202116656643.

It is not an unprimeable number, because it can be changed into a prime (1202116656641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85865475468 + ... + 85865475481.

It is an arithmetic number, because the mean of its divisors is an integer number (343461901900).

Almost surely, 2^{1202116656643} is an apocalyptic number.

1202116656643 is a deficient number, since it is larger than the sum of its proper divisors (171730950957).

1202116656643 is an equidigital number, since it uses as much as digits as its factorization.

1202116656643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171730950956.

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 1202116656643 in words is "one trillion, two hundred two billion, one hundred sixteen million, six hundred fifty-six thousand, six hundred forty-three".