20606416636 has 48 divisors (see below), whose sum is σ = 40949919360. Its totient is φ = 8994490560.

The previous prime is 20606416603. The next prime is 20606416679. The reversal of 20606416636 is 63661460602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 562191 + ... + 597721.

It is an arithmetic number, because the mean of its divisors is an integer number (853123320).

Almost surely, 2^20606416636 is an apocalyptic number.

20606416636 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20606416636 is a deficient number, since it is larger than the sum of its proper divisors (20343502724).

20606416636 is a wasteful number, since it uses less digits than its factorization.

20606416636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36154 (or 36152 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 40.

The spelling of 20606416636 in words is "twenty billion, six hundred six million, four hundred sixteen thousand, six hundred thirty-six".