23205147456 has 112 divisors (see below), whose sum is σ = 63890956800. Its totient is φ = 7426954752.

The previous prime is 23205147443. The next prime is 23205147457. The reversal of 23205147456 is 65474150232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23205147457) 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, 463285 + ... + 510923.

Almost surely, 2^23205147456 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 23205147456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31945478400).

23205147456 is an abundant number, since it is smaller than the sum of its proper divisors (40685809344).

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

23205147456 is a wasteful number, since it uses less digits than its factorization.

23205147456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47756 (or 47746 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 39.

Adding to 23205147456 its reverse (65474150232), we get a palindrome (88679297688).

The spelling of 23205147456 in words is "twenty-three billion, two hundred five million, one hundred forty-seven thousand, four hundred fifty-six".