22506137323 has 16 divisors (see below), whose sum is σ = 23256293760. Its totient is φ = 21771802944.

The previous prime is 22506137309. The next prime is 22506137333. The reversal of 22506137323 is 32373160522.

It is a cyclic number.

It is not a de Polignac number, because 22506137323 - 2²⁹ = 21969266411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22506137333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 828840 + ... + 855562.

It is an arithmetic number, because the mean of its divisors is an integer number (1453518360).

Almost surely, 2^22506137323 is an apocalyptic number.

22506137323 is a deficient number, since it is larger than the sum of its proper divisors (750156437).

22506137323 is a wasteful number, since it uses less digits than its factorization.

22506137323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27018.

The product of its (nonzero) digits is 45360, while the sum is 34.

Adding to 22506137323 its reverse (32373160522), we get a palindrome (54879297845).

The spelling of 22506137323 in words is "twenty-two billion, five hundred six million, one hundred thirty-seven thousand, three hundred twenty-three".