20232966328540 has 144 divisors (see below), whose sum is σ = 51971206500864. Its totient is φ = 6479347593600.

The previous prime is 20232966328513. The next prime is 20232966328607. The reversal of 20232966328540 is 4582366923202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 769075 + ... + 6407605.

It is an arithmetic number, because the mean of its divisors is an integer number (360911156256).

Almost surely, 2^{20232966328540} is an apocalyptic number.

20232966328540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20232966328540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25985603250432).

20232966328540 is an abundant number, since it is smaller than the sum of its proper divisors (31738240172324).

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

20232966328540 is a wasteful number, since it uses less digits than its factorization.

20232966328540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5638656 (or 5638635 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 52.

The spelling of 20232966328540 in words is "twenty trillion, two hundred thirty-two billion, nine hundred sixty-six million, three hundred twenty-eight thousand, five hundred forty".