22181036157 has 24 divisors (see below), whose sum is σ = 36686380224. Its totient is φ = 12650624064.

The previous prime is 22181036153. The next prime is 22181036173. The reversal of 22181036157 is 75163018122.

22181036157 is a `hidden beast` number, since 2 + 21 + 8 + 10 + 3 + 615 + 7 = 666.

It is not a de Polignac number, because 22181036157 - 2² = 22181036153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22181036153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 303648 + ... + 369545.

It is an arithmetic number, because the mean of its divisors is an integer number (1528599176).

Almost surely, 2^22181036157 is an apocalyptic number.

It is an amenable number.

22181036157 is a deficient number, since it is larger than the sum of its proper divisors (14505344067).

22181036157 is a wasteful number, since it uses less digits than its factorization.

22181036157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673729 (or 673726 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The spelling of 22181036157 in words is "twenty-two billion, one hundred eighty-one million, thirty-six thousand, one hundred fifty-seven".