201899813641 has 8 divisors (see below), whose sum is σ = 211153648320. Its totient is φ = 192685610832.

The previous prime is 201899813627. The next prime is 201899813657. The reversal of 201899813641 is 146318998102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201899813641 - 2⁷ = 201899813513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201899813681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9897546 + ... + 9917923.

It is an arithmetic number, because the mean of its divisors is an integer number (26394206040).

Almost surely, 2^201899813641 is an apocalyptic number.

It is an amenable number.

201899813641 is a deficient number, since it is larger than the sum of its proper divisors (9253834679).

201899813641 is a wasteful number, since it uses less digits than its factorization.

201899813641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19815935.

The product of its (nonzero) digits is 746496, while the sum is 52.

The spelling of 201899813641 in words is "two hundred one billion, eight hundred ninety-nine million, eight hundred thirteen thousand, six hundred forty-one".