22152312504 has 192 divisors, whose sum is σ = 69941327040. Its totient is φ = 6203105280.

The previous prime is 22152312503. The next prime is 22152312517. The reversal of 22152312504 is 40521325122.

22152312504 is a `hidden beast` number, since 2 + 2 + 152 + 3 + 1 + 2 + 504 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22152312503) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9744712 + ... + 9746984.

It is an arithmetic number, because the mean of its divisors is an integer number (364277745).

Almost surely, 2^22152312504 is an apocalyptic number.

22152312504 is a gapful number since it is divisible by the number (24) 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 22152312504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34970663520).

22152312504 is an abundant number, since it is smaller than the sum of its proper divisors (47789014536).

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

22152312504 is a wasteful number, since it uses less digits than its factorization.

22152312504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2670 (or 2663 counting only the distinct ones).

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

Adding to 22152312504 its reverse (40521325122), we get a palindrome (62673637626).

The spelling of 22152312504 in words is "twenty-two billion, one hundred fifty-two million, three hundred twelve thousand, five hundred four".