23215104450 has 144 divisors (see below), whose sum is σ = 63943719840. Its totient is φ = 6035178240.

The previous prime is 23215104431. The next prime is 23215104461. The reversal of 23215104450 is 5440151232.

23215104450 is a `hidden beast` number, since 2 + 3 + 215 + 1 + 0 + 445 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 15653409 + ... + 15654891.

It is an arithmetic number, because the mean of its divisors is an integer number (444053610).

Almost surely, 2^23215104450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23215104450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31971859920).

23215104450 is an abundant number, since it is smaller than the sum of its proper divisors (40728615390).

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

23215104450 is a wasteful number, since it uses less digits than its factorization.

23215104450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2353 (or 2345 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 23215104450 its reverse (5440151232), we get a palindrome (28655255682).

The spelling of 23215104450 in words is "twenty-three billion, two hundred fifteen million, one hundred four thousand, four hundred fifty".