20441610660 has 24 divisors (see below), whose sum is σ = 57236510016. Its totient is φ = 5451096160.

The previous prime is 20441610659. The next prime is 20441610667. The reversal of 20441610660 is 6601614402.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (20441610667) 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, 170346696 + ... + 170346815.

It is an arithmetic number, because the mean of its divisors is an integer number (2384854584).

Almost surely, 2^20441610660 is an apocalyptic number.

20441610660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20441610660 is an abundant number, since it is smaller than the sum of its proper divisors (36794899356).

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

20441610660 is a wasteful number, since it uses less digits than its factorization.

20441610660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340693523 (or 340693521 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The spelling of 20441610660 in words is "twenty billion, four hundred forty-one million, six hundred ten thousand, six hundred sixty".