10990601820 has 108 divisors (see below), whose sum is σ = 36644495160. Its totient is φ = 2664383040.

The previous prime is 10990601803. The next prime is 10990601821. The reversal of 10990601820 is 2810609901.

10990601820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10990601821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 230530 + ... + 274089.

Almost surely, 2^10990601820 is an apocalyptic number.

10990601820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10990601820 is an abundant number, since it is smaller than the sum of its proper divisors (25653893340).

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

10990601820 is a wasteful number, since it uses less digits than its factorization.

10990601820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504656 (or 504640 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The spelling of 10990601820 in words is "ten billion, nine hundred ninety million, six hundred one thousand, eight hundred twenty".