201656546226 has 48 divisors (see below), whose sum is σ = 463884655104. Its totient is φ = 63092380032.

The previous prime is 201656546219. The next prime is 201656546237. The reversal of 201656546226 is 622645656102.

201656546226 is a `hidden beast` number, since 2 + 0 + 1 + 6 + 565 + 4 + 62 + 26 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 785530 + ... + 1010133.

It is an arithmetic number, because the mean of its divisors is an integer number (9664263648).

Almost surely, 2^201656546226 is an apocalyptic number.

201656546226 is an abundant number, since it is smaller than the sum of its proper divisors (262228108878).

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

201656546226 is a wasteful number, since it uses less digits than its factorization.

201656546226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1796055 (or 1796052 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 201656546226 in words is "two hundred one billion, six hundred fifty-six million, five hundred forty-six thousand, two hundred twenty-six".