20500183536 has 160 divisors (see below), whose sum is σ = 61845946368. Its totient is φ = 5730600960.

The previous prime is 20500183519. The next prime is 20500183553. The reversal of 20500183536 is 63538100502.

It is an interprime number because it is at equal distance from previous prime (20500183519) and next prime (20500183553).

It is a junction number, because it is equal to n+sod(n) for n = 20500183497 and 20500183506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3111766 + ... + 3118346.

Almost surely, 2^20500183536 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 20500183536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30922973184).

20500183536 is an abundant number, since it is smaller than the sum of its proper divisors (41345762832).

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

20500183536 is a wasteful number, since it uses less digits than its factorization.

20500183536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6799 (or 6793 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The spelling of 20500183536 in words is "twenty billion, five hundred million, one hundred eighty-three thousand, five hundred thirty-six".