20650605055020 has 120 divisors (see below), whose sum is σ = 64783123012608. Its totient is φ = 5506708147200.

The previous prime is 20650605055001. The next prime is 20650605055121. The reversal of 20650605055020 is 2055050605602.

20650605055020 is a `hidden beast` number, since 2 + 0 + 6 + 50 + 6 + 0 + 50 + 550 + 2 + 0 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 94030140 + ... + 94249500.

Almost surely, 2^{20650605055020} is an apocalyptic number.

20650605055020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20650605055020 is an abundant number, since it is smaller than the sum of its proper divisors (44132517957588).

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

20650605055020 is a wasteful number, since it uses less digits than its factorization.

20650605055020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277493 (or 277482 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The spelling of 20650605055020 in words is "twenty trillion, six hundred fifty billion, six hundred five million, fifty-five thousand, twenty".