22523021045 has 8 divisors (see below), whose sum is σ = 30888714624. Its totient is φ = 15444357264.

The previous prime is 22523021023. The next prime is 22523021069. The reversal of 22523021045 is 54012032522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22523021045 - 2¹² = 22523016949 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321757409 + ... + 321757478.

It is an arithmetic number, because the mean of its divisors is an integer number (3861089328).

Almost surely, 2^22523021045 is an apocalyptic number.

It is an amenable number.

22523021045 is a deficient number, since it is larger than the sum of its proper divisors (8365693579).

22523021045 is an equidigital number, since it uses as much as digits as its factorization.

22523021045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643514899.

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 22523021045 its reverse (54012032522), we get a palindrome (76535053567).

The spelling of 22523021045 in words is "twenty-two billion, five hundred twenty-three million, twenty-one thousand, forty-five".