20801689030 has 64 divisors (see below), whose sum is σ = 38763648000. Its totient is φ = 8032348800.

The previous prime is 20801688991. The next prime is 20801689033. The reversal of 20801689030 is 3098610802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20801689033) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14868271 + ... + 14869669.

It is an arithmetic number, because the mean of its divisors is an integer number (605682000).

Almost surely, 2^20801689030 is an apocalyptic number.

20801689030 is a deficient number, since it is larger than the sum of its proper divisors (17961958970).

20801689030 is a wasteful number, since it uses less digits than its factorization.

20801689030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1829.

The product of its (nonzero) digits is 20736, while the sum is 37.

The spelling of 20801689030 in words is "twenty billion, eight hundred one million, six hundred eighty-nine thousand, thirty".