2217646464896 has 16 divisors (see below), whose sum is σ = 4417967567040. Its totient is φ = 1108823232384.

The previous prime is 2217646464893. The next prime is 2217646464911. The reversal of 2217646464896 is 6984646467122.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2217646464893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8662681376 + ... + 8662681631.

It is an arithmetic number, because the mean of its divisors is an integer number (276122972940).

Almost surely, 2^{2217646464896} is an apocalyptic number.

It is an amenable number.

2217646464896 is a deficient number, since it is larger than the sum of its proper divisors (2200321102144).

2217646464896 is an equidigital number, since it uses as much as digits as its factorization.

2217646464896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17325363021 (or 17325363009 counting only the distinct ones).

The product of its digits is 167215104, while the sum is 65.

The spelling of 2217646464896 in words is "two trillion, two hundred seventeen billion, six hundred forty-six million, four hundred sixty-four thousand, eight hundred ninety-six".