22145533523 has 8 divisors (see below), whose sum is σ = 22923565680. Its totient is φ = 21368460960.

The previous prime is 22145533471. The next prime is 22145533607. The reversal of 22145533523 is 32533554122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22145533523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22145530523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192773 + ... + 285398.

It is an arithmetic number, because the mean of its divisors is an integer number (2865445710).

Almost surely, 2^22145533523 is an apocalyptic number.

22145533523 is a deficient number, since it is larger than the sum of its proper divisors (778032157).

22145533523 is a wasteful number, since it uses less digits than its factorization.

22145533523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479797.

The product of its digits is 108000, while the sum is 35.

The spelling of 22145533523 in words is "twenty-two billion, one hundred forty-five million, five hundred thirty-three thousand, five hundred twenty-three".