2220666603644 has 12 divisors (see below), whose sum is σ = 3922485870744. Its totient is φ = 1099956354864.

The previous prime is 2220666603629. The next prime is 2220666603667. The reversal of 2220666603644 is 4463066660222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2594236259 + ... + 2594237114.

It is an arithmetic number, because the mean of its divisors is an integer number (326873822562).

Almost surely, 2^{2220666603644} is an apocalyptic number.

It is an amenable number.

2220666603644 is a deficient number, since it is larger than the sum of its proper divisors (1701819267100).

2220666603644 is a wasteful number, since it uses less digits than its factorization.

2220666603644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5188473484 (or 5188473482 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 47.

The spelling of 2220666603644 in words is "two trillion, two hundred twenty billion, six hundred sixty-six million, six hundred three thousand, six hundred forty-four".