20004356634166 has 4 divisors (see below), whose sum is σ = 30006534951252. Its totient is φ = 10002178317082.

The previous prime is 20004356634137. The next prime is 20004356634167. The reversal of 20004356634166 is 66143665340002.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20004356634167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5001089158540 + ... + 5001089158543.

It is an arithmetic number, because the mean of its divisors is an integer number (7501633737813).

Almost surely, 2^{20004356634166} is an apocalyptic number.

20004356634166 is a deficient number, since it is larger than the sum of its proper divisors (10002178317086).

20004356634166 is a wasteful number, since it uses less digits than its factorization.

20004356634166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10002178317085.

The product of its (nonzero) digits is 1866240, while the sum is 46.

The spelling of 20004356634166 in words is "twenty trillion, four billion, three hundred fifty-six million, six hundred thirty-four thousand, one hundred sixty-six".