20219832036 has 240 divisors, whose sum is σ = 57154204800. Its totient is φ = 6217440768.

The previous prime is 20219832029. The next prime is 20219832037. The reversal of 20219832036 is 63023891202.

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

It is not an unprimeable number, because it can be changed into a prime (20219832037) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 28518450 + ... + 28519158.

It is an arithmetic number, because the mean of its divisors is an integer number (238142520).

Almost surely, 2^20219832036 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 20219832036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28577102400).

20219832036 is an abundant number, since it is smaller than the sum of its proper divisors (36934372764).

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

20219832036 is a wasteful number, since it uses less digits than its factorization.

20219832036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880 (or 869 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 20219832036 in words is "twenty billion, two hundred nineteen million, eight hundred thirty-two thousand, thirty-six".