20330781610 has 32 divisors (see below), whose sum is σ = 38764930752. Its totient is φ = 7650612480.

The previous prime is 20330781607. The next prime is 20330781617. The reversal of 20330781610 is 1618703302.

It is not an unprimeable number, because it can be changed into a prime (20330781617) 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, 385069 + ... + 434671.

It is an arithmetic number, because the mean of its divisors is an integer number (1211404086).

Almost surely, 2^20330781610 is an apocalyptic number.

20330781610 is a deficient number, since it is larger than the sum of its proper divisors (18434149142).

20330781610 is a wasteful number, since it uses less digits than its factorization.

20330781610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52038.

The product of its (nonzero) digits is 6048, while the sum is 31.

The spelling of 20330781610 in words is "twenty billion, three hundred thirty million, seven hundred eighty-one thousand, six hundred ten".