20267089024 has 128 divisors (see below), whose sum is σ = 52309353600. Its totient is φ = 7595679744.

The previous prime is 20267089001. The next prime is 20267089027. The reversal of 20267089024 is 42098076202.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (20267089027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175524 + ... + 267100.

It is an arithmetic number, because the mean of its divisors is an integer number (408666825).

Almost surely, 2^20267089024 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 20267089024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26154676800).

20267089024 is an abundant number, since it is smaller than the sum of its proper divisors (32042264576).

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

20267089024 is a wasteful number, since it uses less digits than its factorization.

20267089024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91630 (or 91618 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 20267089024 in words is "twenty billion, two hundred sixty-seven million, eighty-nine thousand, twenty-four".