23152225503440 has 60 divisors (see below), whose sum is σ = 59167330035492. Its totient is φ = 8418991088640.

The previous prime is 23152225503439. The next prime is 23152225503529. The reversal of 23152225503440 is 4430552225132.

It can be written as a sum of positive squares in 2 ways, for example, as 13595768315536 + 9556457187904 = 3687244^2 + 3091352^2 .

It is a super-2 number, since 2×23152225503440² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23152225503394 and 23152225503403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1195869737 + ... + 1195889096.

Almost surely, 2^{23152225503440} is an apocalyptic number.

23152225503440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23152225503440 is an abundant number, since it is smaller than the sum of its proper divisors (36015104532052).

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

23152225503440 is a wasteful number, since it uses less digits than its factorization.

23152225503440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2391758868 (or 2391758851 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 38.

Adding to 23152225503440 its reverse (4430552225132), we get a palindrome (27582777728572).

The spelling of 23152225503440 in words is "twenty-three trillion, one hundred fifty-two billion, two hundred twenty-five million, five hundred three thousand, four hundred forty".