22161556053 has 96 divisors (see below), whose sum is σ = 41615974400. Its totient is φ = 11035916928.

The previous prime is 22161556019. The next prime is 22161556057. The reversal of 22161556053 is 35065516122.

22161556053 is a `hidden beast` number, since 22 + 16 + 15 + 5 + 605 + 3 = 666.

It is not a de Polignac number, because 22161556053 - 2¹⁰ = 22161555029 is a prime.

It is a super-2 number, since 2×22161556053² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22161555999 and 22161556017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22161556057) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4774908 + ... + 4779546.

Almost surely, 2^22161556053 is an apocalyptic number.

It is an amenable number.

22161556053 is a deficient number, since it is larger than the sum of its proper divisors (19454418347).

22161556053 is a wasteful number, since it uses less digits than its factorization.

22161556053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4991 (or 4988 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 22161556053 in words is "twenty-two billion, one hundred sixty-one million, five hundred fifty-six thousand, fifty-three".