22125523400145 has 64 divisors (see below), whose sum is σ = 44294303047680. Its totient is φ = 10381477233600.

The previous prime is 22125523400129. The next prime is 22125523400203. The reversal of 22125523400145 is 54100432552122.

22125523400145 is a `hidden beast` number, since 2 + 2 + 125 + 52 + 340 + 0 + 145 = 666.

It is not a de Polignac number, because 22125523400145 - 2⁴ = 22125523400129 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 240265939 + ... + 240358008.

It is an arithmetic number, because the mean of its divisors is an integer number (692098485120).

Almost surely, 2^{22125523400145} is an apocalyptic number.

It is an amenable number.

22125523400145 is an abundant number, since it is smaller than the sum of its proper divisors (22168779647535).

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

22125523400145 is a wasteful number, since it uses less digits than its factorization.

22125523400145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480624003 (or 480623997 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

Adding to 22125523400145 its reverse (54100432552122), we get a palindrome (76225955952267).

The spelling of 22125523400145 in words is "twenty-two trillion, one hundred twenty-five billion, five hundred twenty-three million, four hundred thousand, one hundred forty-five".