22150161636 has 24 divisors (see below), whose sum is σ = 51715917120. Its totient is φ = 7378786272.

The previous prime is 22150161623. The next prime is 22150161637. The reversal of 22150161636 is 63616105122.

It is a junction number, because it is equal to n+sod(n) for n = 22150161597 and 22150161606.

It is not an unprimeable number, because it can be changed into a prime (22150161637) 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, 555031 + ... + 593598.

It is an arithmetic number, because the mean of its divisors is an integer number (2154829880).

Almost surely, 2^22150161636 is an apocalyptic number.

It is an amenable number.

22150161636 is an abundant number, since it is smaller than the sum of its proper divisors (29565755484).

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

22150161636 is a wasteful number, since it uses less digits than its factorization.

22150161636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150243 (or 1150241 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

Adding to 22150161636 its reverse (63616105122), we get a palindrome (85766266758).

The spelling of 22150161636 in words is "twenty-two billion, one hundred fifty million, one hundred sixty-one thousand, six hundred thirty-six".