2222665787798 has 16 divisors (see below), whose sum is σ = 3416006170080. Its totient is φ = 1084008024000.

The previous prime is 2222665787767. The next prime is 2222665787813. The reversal of 2222665787798 is 8977875662222.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2331413 + ... + 3143376.

It is an arithmetic number, because the mean of its divisors is an integer number (213500385630).

Almost surely, 2^{2222665787798} is an apocalyptic number.

2222665787798 is a deficient number, since it is larger than the sum of its proper divisors (1193340382282).

2222665787798 is a wasteful number, since it uses less digits than its factorization.

2222665787798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5479783.

The product of its digits is 568995840, while the sum is 71.

The spelling of 2222665787798 in words is "two trillion, two hundred twenty-two billion, six hundred sixty-five million, seven hundred eighty-seven thousand, seven hundred ninety-eight".