201670550571652 has 24 divisors (see below), whose sum is σ = 360119023608960. Its totient is φ = 98798887930080.

The previous prime is 201670550571601. The next prime is 201670550571667. The reversal of 201670550571652 is 256175055076102.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 201670550571652.

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 7 ways as a sum of consecutive naturals, for example, 2435828623 + ... + 2435911414.

It is an arithmetic number, because the mean of its divisors is an integer number (15004959317040).

Almost surely, 2^{201670550571652} is an apocalyptic number.

It is an amenable number.

201670550571652 is a deficient number, since it is larger than the sum of its proper divisors (158448473037308).

201670550571652 is a wasteful number, since it uses less digits than its factorization.

201670550571652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4871740251 (or 4871740249 counting only the distinct ones).

The product of its (nonzero) digits is 4410000, while the sum is 52.

It can be divided in two parts, 201670550 and 571652, that added together give a palindrome (202242202).

The spelling of 201670550571652 in words is "two hundred one trillion, six hundred seventy billion, five hundred fifty million, five hundred seventy-one thousand, six hundred fifty-two".