201996222408 has 36 divisors (see below), whose sum is σ = 547083431115. Its totient is φ = 67330802928.

The previous prime is 201996222367. The next prime is 201996222469. The reversal of 201996222408 is 804222699102.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

201996222408 is a `hidden beast` number, since 2 + 0 + 19 + 9 + 6 + 222 + 408 = 666.

It can be written as a sum of positive squares in only one way, i.e., 100998111204 + 100998111204 = 317802^2 + 317802^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=317802.

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 8 ways as a sum of consecutive naturals, for example, 3787141 + ... + 3840107.

Almost surely, 2^201996222408 is an apocalyptic number.

It is an amenable number.

201996222408 is an abundant number, since it is smaller than the sum of its proper divisors (345087208707).

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

201996222408 is an frugal number, since it uses more digits than its factorization.

201996222408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105946 (or 52972 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 201996222408 in words is "two hundred one billion, nine hundred ninety-six million, two hundred twenty-two thousand, four hundred eight".