22154635156 has 6 divisors (see below), whose sum is σ = 38770611530. Its totient is φ = 11077317576.

The previous prime is 22154635133. The next prime is 22154635157. The reversal of 22154635156 is 65153645122.

It can be written as a sum of positive squares in only one way, i.e., 21564922500 + 589712656 = 146850^2 + 24284^2 .

It is a super-2 number, since 2×22154635156² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22154635157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2769329391 + ... + 2769329398.

Almost surely, 2^22154635156 is an apocalyptic number.

It is an amenable number.

22154635156 is a deficient number, since it is larger than the sum of its proper divisors (16615976374).

22154635156 is a wasteful number, since it uses less digits than its factorization.

22154635156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5538658793 (or 5538658791 counting only the distinct ones).

The product of its digits is 216000, while the sum is 40.

The spelling of 22154635156 in words is "twenty-two billion, one hundred fifty-four million, six hundred thirty-five thousand, one hundred fifty-six".