655161222 has 32 divisors (see below), whose sum is σ = 1350599040. Its totient is φ = 211740480.

The previous prime is 655161217. The next prime is 655161229. The reversal of 655161222 is 222161556.

It is a super-3 number, since 3×655161222³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 655161222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655161229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31929 + ... + 48267.

It is an arithmetic number, because the mean of its divisors is an integer number (42206220).

Almost surely, 2^655161222 is an apocalyptic number.

655161222 is an abundant number, since it is smaller than the sum of its proper divisors (695437818).

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

655161222 is a wasteful number, since it uses less digits than its factorization.

655161222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16548.

The product of its digits is 7200, while the sum is 30.

The square root of 655161222 is about 25596.1173227503. The cubic root of 655161222 is about 868.5258083608.

The spelling of 655161222 in words is "six hundred fifty-five million, one hundred sixty-one thousand, two hundred twenty-two".