656000022 has 16 divisors (see below), whose sum is σ = 1315579392. Its totient is φ = 218070120.

The previous prime is 656000017. The next prime is 656000057. The reversal of 656000022 is 220000656.

It is a super-3 number, since 3×656000022³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146754 + ... + 151157.

It is an arithmetic number, because the mean of its divisors is an integer number (82223712).

Almost surely, 2^656000022 is an apocalyptic number.

656000022 is an abundant number, since it is smaller than the sum of its proper divisors (659579370).

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

656000022 is a wasteful number, since it uses less digits than its factorization.

656000022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298283.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 656000022 is about 25612.4973792092. The cubic root of 656000022 is about 868.8963068670.

Adding to 656000022 its reverse (220000656), we get a palindrome (876000678).

The spelling of 656000022 in words is "six hundred fifty-six million, twenty-two", and thus it is an aban number.