22160655 has 32 divisors (see below), whose sum is σ = 42981120. Its totient is φ = 10743840.

The previous prime is 22160653. The next prime is 22160659. The reversal of 22160655 is 55606122.

22160655 is a `hidden beast` number, since 2 + 2 + 1 + 6 + 0 + 655 = 666.

It is not a de Polignac number, because 22160655 - 2¹ = 22160653 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22160653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5977 + ... + 8946.

It is an arithmetic number, because the mean of its divisors is an integer number (1343160).

Almost surely, 2^22160655 is an apocalyptic number.

22160655 is a deficient number, since it is larger than the sum of its proper divisors (20820465).

22160655 is a wasteful number, since it uses less digits than its factorization.

22160655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14948 (or 14942 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 22160655 is about 4707.5104885704. The cubic root of 22160655 is about 280.8843425870.

Adding to 22160655 its reverse (55606122), we get a palindrome (77766777).

The spelling of 22160655 in words is "twenty-two million, one hundred sixty thousand, six hundred fifty-five".