25222503351666 has 16 divisors (see below), whose sum is σ = 50510265453504. Its totient is φ = 8396624658864.

The previous prime is 25222503351583. The next prime is 25222503351671. The reversal of 25222503351666 is 66615330522252.

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, 2719109566 + ... + 2719118841.

It is an arithmetic number, because the mean of its divisors is an integer number (3156891590844).

Almost surely, 2^{25222503351666} is an apocalyptic number.

25222503351666 is an abundant number, since it is smaller than the sum of its proper divisors (25287762101838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25222503351666 is a wasteful number, since it uses less digits than its factorization.

25222503351666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5438229185.

The product of its (nonzero) digits is 3888000, while the sum is 48.

The spelling of 25222503351666 in words is "twenty-five trillion, two hundred twenty-two billion, five hundred three million, three hundred fifty-one thousand, six hundred sixty-six".