2220117065461 has 4 divisors (see below), whose sum is σ = 2291733745024. Its totient is φ = 2148500385900.

The previous prime is 2220117065443. The next prime is 2220117065489. The reversal of 2220117065461 is 1645607110222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2220117065461 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 2220117065461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220117065861) 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, 35808339735 + ... + 35808339796.

It is an arithmetic number, because the mean of its divisors is an integer number (572933436256).

Almost surely, 2^{2220117065461} is an apocalyptic number.

It is an amenable number.

2220117065461 is a deficient number, since it is larger than the sum of its proper divisors (71616679563).

2220117065461 is an equidigital number, since it uses as much as digits as its factorization.

2220117065461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71616679562.

The product of its (nonzero) digits is 40320, while the sum is 37.

The spelling of 2220117065461 in words is "two trillion, two hundred twenty billion, one hundred seventeen million, sixty-five thousand, four hundred sixty-one".