201161420416 has 64 divisors (see below), whose sum is σ = 452258575200. Its totient is φ = 88283991040.

The previous prime is 201161420407. The next prime is 201161420417. The reversal of 201161420416 is 614024161102.

201161420416 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×201161420416² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201161420417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2422450 + ... + 2504113.

Almost surely, 2^201161420416 is an apocalyptic number.

It is an amenable number.

201161420416 is an abundant number, since it is smaller than the sum of its proper divisors (251097154784).

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

201161420416 is a wasteful number, since it uses less digits than its factorization.

201161420416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4926617 (or 4926605 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

Adding to 201161420416 its reverse (614024161102), we get a palindrome (815185581518).

The spelling of 201161420416 in words is "two hundred one billion, one hundred sixty-one million, four hundred twenty thousand, four hundred sixteen".