20112453726566 has 4 divisors (see below), whose sum is σ = 30168680589852. Its totient is φ = 10056226863282.

The previous prime is 20112453726557. The next prime is 20112453726577. The reversal of 20112453726566 is 66562735421102.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5028113431640 + ... + 5028113431643.

It is an arithmetic number, because the mean of its divisors is an integer number (7542170147463).

Almost surely, 2^{20112453726566} is an apocalyptic number.

20112453726566 is a deficient number, since it is larger than the sum of its proper divisors (10056226863286).

20112453726566 is a wasteful number, since it uses less digits than its factorization.

20112453726566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10056226863285.

The product of its (nonzero) digits is 3628800, while the sum is 50.

The spelling of 20112453726566 in words is "twenty trillion, one hundred twelve billion, four hundred fifty-three million, seven hundred twenty-six thousand, five hundred sixty-six".