20013653450446 has 8 divisors (see below), whose sum is σ = 30020814901440. Its totient is φ = 10006715149968.

The previous prime is 20013653450423. The next prime is 20013653450447. The reversal of 20013653450446 is 64405435631002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013653450447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55563231 + ... + 55922266.

It is an arithmetic number, because the mean of its divisors is an integer number (3752601862680).

Almost surely, 2^{20013653450446} is an apocalyptic number.

20013653450446 is a deficient number, since it is larger than the sum of its proper divisors (10007161450994).

20013653450446 is a wasteful number, since it uses less digits than its factorization.

20013653450446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111575258.

The product of its (nonzero) digits is 1036800, while the sum is 43.

The spelling of 20013653450446 in words is "twenty trillion, thirteen billion, six hundred fifty-three million, four hundred fifty thousand, four hundred forty-six".