20406266600620 has 24 divisors (see below), whose sum is σ = 42853800956400. Its totient is φ = 8162384526912.

The previous prime is 20406266600617. The next prime is 20406266600627. The reversal of 20406266600620 is 2600666260402.

It is a happy number.

20406266600620 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (20406266600627) 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, 6255735 + ... + 8941294.

It is an arithmetic number, because the mean of its divisors is an integer number (1785575039850).

Almost surely, 2^{20406266600620} is an apocalyptic number.

20406266600620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20406266600620 is an abundant number, since it is smaller than the sum of its proper divisors (22447534355780).

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

20406266600620 is a wasteful number, since it uses less digits than its factorization.

20406266600620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15264177 (or 15264175 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 40.

The spelling of 20406266600620 in words is "twenty trillion, four hundred six billion, two hundred sixty-six million, six hundred thousand, six hundred twenty".