20600666446602 has 64 divisors (see below), whose sum is σ = 45724744166400. Its totient is φ = 6134667665280.

The previous prime is 20600666446589. The next prime is 20600666446609. The reversal of 20600666446602 is 20664466600602.

It is not an unprimeable number, because it can be changed into a prime (20600666446609) 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, 10199299 + ... + 12051017.

It is an arithmetic number, because the mean of its divisors is an integer number (714449127600).

Almost surely, 2^{20600666446602} is an apocalyptic number.

20600666446602 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 20600666446602, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22862372083200).

20600666446602 is an abundant number, since it is smaller than the sum of its proper divisors (25124077719798).

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

20600666446602 is a wasteful number, since it uses less digits than its factorization.

20600666446602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1854651.

The product of its (nonzero) digits is 2985984, while the sum is 48.

The spelling of 20600666446602 in words is "twenty trillion, six hundred billion, six hundred sixty-six million, four hundred forty-six thousand, six hundred two".