220711067617 has 4 divisors (see below), whose sum is σ = 222192350100. Its totient is φ = 219229785136.

The previous prime is 220711067561. The next prime is 220711067623. The reversal of 220711067617 is 716760117022.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 65948294416 + 154762773201 = 256804^2 + 393399^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220711067617 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 220711067617.

It is not an unprimeable number, because it can be changed into a prime (220711467617) 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, 740641018 + ... + 740641315.

It is an arithmetic number, because the mean of its divisors is an integer number (55548087525).

Almost surely, 2^220711067617 is an apocalyptic number.

It is an amenable number.

220711067617 is a deficient number, since it is larger than the sum of its proper divisors (1481282483).

220711067617 is a wasteful number, since it uses less digits than its factorization.

220711067617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481282482.

The product of its (nonzero) digits is 49392, while the sum is 40.

The spelling of 220711067617 in words is "two hundred twenty billion, seven hundred eleven million, sixty-seven thousand, six hundred seventeen".