2142205730566 has 32 divisors (see below), whose sum is σ = 3740854689792. Its totient is φ = 909235474560.

The previous prime is 2142205730527. The next prime is 2142205730569. The reversal of 2142205730566 is 6650375022412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142205730569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22502986 + ... + 22597981.

It is an arithmetic number, because the mean of its divisors is an integer number (116901709056).

Almost surely, 2^{2142205730566} is an apocalyptic number.

2142205730566 is a deficient number, since it is larger than the sum of its proper divisors (1598648959226).

2142205730566 is a wasteful number, since it uses less digits than its factorization.

2142205730566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45101124.

The product of its (nonzero) digits is 604800, while the sum is 43.

The spelling of 2142205730566 in words is "two trillion, one hundred forty-two billion, two hundred five million, seven hundred thirty thousand, five hundred sixty-six".