20000985505378 has 8 divisors (see below), whose sum is σ = 30001635417600. Its totient is φ = 10000440366180.

The previous prime is 20000985505339. The next prime is 20000985505379. The reversal of 20000985505378 is 87350558900002.

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

It is not an unprimeable number, because it can be changed into a prime (20000985505379) 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, 25714258 + ... + 26480653.

It is an arithmetic number, because the mean of its divisors is an integer number (3750204427200).

Almost surely, 2^{20000985505378} is an apocalyptic number.

20000985505378 is a deficient number, since it is larger than the sum of its proper divisors (10000649912222).

20000985505378 is a wasteful number, since it uses less digits than its factorization.

20000985505378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52386512.

The product of its (nonzero) digits is 3024000, while the sum is 52.

The spelling of 20000985505378 in words is "twenty trillion, nine hundred eighty-five million, five hundred five thousand, three hundred seventy-eight".