20016281805608 has 64 divisors (see below), whose sum is σ = 41069673216000. Its totient is φ = 9070069003200.

The previous prime is 20016281805601. The next prime is 20016281805649. The reversal of 20016281805608 is 80650818261002.

It is not an unprimeable number, because it can be changed into a prime (20016281805601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36863753 + ... + 37402791.

It is an arithmetic number, because the mean of its divisors is an integer number (641713644000).

Almost surely, 2^{20016281805608} is an apocalyptic number.

It is an amenable number.

20016281805608 is an abundant number, since it is smaller than the sum of its proper divisors (21053391410392).

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

20016281805608 is a wasteful number, since it uses less digits than its factorization.

20016281805608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540366 (or 540362 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 47.

The spelling of 20016281805608 in words is "twenty trillion, sixteen billion, two hundred eighty-one million, eight hundred five thousand, six hundred eight".