22156130136 has 256 divisors, whose sum is σ = 66537768960. Its totient is φ = 6016757760.

The previous prime is 22156130131. The next prime is 22156130149. The reversal of 22156130136 is 63103165122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22156130131) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 71241421 + ... + 71241731.

It is an arithmetic number, because the mean of its divisors is an integer number (259913160).

Almost surely, 2^22156130136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22156130136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33268884480).

22156130136 is an abundant number, since it is smaller than the sum of its proper divisors (44381638824).

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

22156130136 is a wasteful number, since it uses less digits than its factorization.

22156130136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594 (or 590 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

Adding to 22156130136 its reverse (63103165122), we get a palindrome (85259295258).

The spelling of 22156130136 in words is "twenty-two billion, one hundred fifty-six million, one hundred thirty thousand, one hundred thirty-six".