20206356336 has 320 divisors, whose sum is σ = 62167449600. Its totient is φ = 6270130944.

The previous prime is 20206356311. The next prime is 20206356353. The reversal of 20206356336 is 63365360202.

20206356336 is a `hidden beast` number, since 2 + 0 + 2 + 0 + 63 + 563 + 36 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20206356336.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 84545305 + ... + 84545543.

It is an arithmetic number, because the mean of its divisors is an integer number (194273280).

Almost surely, 2^20206356336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20206356336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31083724800).

20206356336 is an abundant number, since it is smaller than the sum of its proper divisors (41961093264).

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

20206356336 is a wasteful number, since it uses less digits than its factorization.

20206356336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473 (or 461 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 36.

The spelling of 20206356336 in words is "twenty billion, two hundred six million, three hundred fifty-six thousand, three hundred thirty-six".