20268822132 has 120 divisors (see below), whose sum is σ = 58903713792. Its totient is φ = 6035342400.

The previous prime is 20268822121. The next prime is 20268822139. The reversal of 20268822132 is 23122886202.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20268822139) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 52957 + ... + 208187.

Almost surely, 2^20268822132 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 20268822132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29451856896).

20268822132 is an abundant number, since it is smaller than the sum of its proper divisors (38634891660).

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

20268822132 is a wasteful number, since it uses less digits than its factorization.

20268822132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155291 (or 155280 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The spelling of 20268822132 in words is "twenty billion, two hundred sixty-eight million, eight hundred twenty-two thousand, one hundred thirty-two".