22523543220145 has 48 divisors (see below), whose sum is σ = 29997880174080. Its totient is φ = 16100814336000.

The previous prime is 22523543220121. The next prime is 22523543220179. The reversal of 22523543220145 is 54102234532522.

It is not a de Polignac number, because 22523543220145 - 2³⁹ = 21973787406257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22523543220098 and 22523543220107.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 294460305 + ... + 294536785.

It is an arithmetic number, because the mean of its divisors is an integer number (624955836960).

Almost surely, 2^{22523543220145} is an apocalyptic number.

It is an amenable number.

22523543220145 is a deficient number, since it is larger than the sum of its proper divisors (7474336953935).

22523543220145 is a wasteful number, since it uses less digits than its factorization.

22523543220145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78058 (or 77997 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 40.

Adding to 22523543220145 its reverse (54102234532522), we get a palindrome (76625777752667).

The spelling of 22523543220145 in words is "twenty-two trillion, five hundred twenty-three billion, five hundred forty-three million, two hundred twenty thousand, one hundred forty-five".