23551322000 has 80 divisors (see below), whose sum is σ = 57668332800. Its totient is φ = 9301219200.

The previous prime is 23551321973. The next prime is 23551322021. The reversal of 23551322000 is 22315532.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83471 + ... + 232529.

It is an arithmetic number, because the mean of its divisors is an integer number (720854160).

Almost surely, 2^23551322000 is an apocalyptic number.

23551322000 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 23551322000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28834166400).

23551322000 is an abundant number, since it is smaller than the sum of its proper divisors (34117010800).

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

23551322000 is a wasteful number, since it uses less digits than its factorization.

23551322000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149161 (or 149145 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

Adding to 23551322000 its reverse (22315532), we get a palindrome (23573637532).

The spelling of 23551322000 in words is "twenty-three billion, five hundred fifty-one million, three hundred twenty-two thousand".