2220660460045 has 16 divisors (see below), whose sum is σ = 2890363231728. Its totient is φ = 1631245557760.

The previous prime is 2220660460019. The next prime is 2220660460069. The reversal of 2220660460045 is 5400640660222.

It can be written as a sum of positive squares in 8 ways, for example, as 55610129124 + 2165050330921 = 235818^2 + 1471411^2 .

It is not a de Polignac number, because 2220660460045 - 2⁵ = 2220660460013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2220660459986 and 2220660460013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 318599164 + ... + 318606133.

It is an arithmetic number, because the mean of its divisors is an integer number (180647701983).

Almost surely, 2^{2220660460045} is an apocalyptic number.

It is an amenable number.

2220660460045 is a deficient number, since it is larger than the sum of its proper divisors (669702771683).

2220660460045 is a wasteful number, since it uses less digits than its factorization.

2220660460045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637205360.

The product of its (nonzero) digits is 138240, while the sum is 37.

The spelling of 2220660460045 in words is "two trillion, two hundred twenty billion, six hundred sixty million, four hundred sixty thousand, forty-five".