10990110020 has 24 divisors (see below), whose sum is σ = 24436833624. Its totient is φ = 4137453056.

The previous prime is 10990110011. The next prime is 10990110023. The reversal of 10990110020 is 2001109901.

It can be written as a sum of positive squares in 4 ways, for example, as 1069551616 + 9920558404 = 32704^2 + 99602^2 .

It is not an unprimeable number, because it can be changed into a prime (10990110023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16161587 + ... + 16162266.

It is an arithmetic number, because the mean of its divisors is an integer number (1018201401).

Almost surely, 2^10990110020 is an apocalyptic number.

10990110020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10990110020 is an abundant number, since it is smaller than the sum of its proper divisors (13446723604).

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

10990110020 is a wasteful number, since it uses less digits than its factorization.

10990110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32323879 (or 32323877 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 23.

Adding to 10990110020 its reverse (2001109901), we get a palindrome (12991219921).

The spelling of 10990110020 in words is "ten billion, nine hundred ninety million, one hundred ten thousand, twenty".