201565198652 has 12 divisors (see below), whose sum is σ = 353263231776. Its totient is φ = 100632846720.

The previous prime is 201565198649. The next prime is 201565198661. The reversal of 201565198652 is 256891565102.

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 201565198652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37435124 + ... + 37440507.

It is an arithmetic number, because the mean of its divisors is an integer number (29438602648).

Almost surely, 2^201565198652 is an apocalyptic number.

It is an amenable number.

201565198652 is a deficient number, since it is larger than the sum of its proper divisors (151698033124).

201565198652 is a wasteful number, since it uses less digits than its factorization.

201565198652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74876308 (or 74876306 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 50.

The spelling of 201565198652 in words is "two hundred one billion, five hundred sixty-five million, one hundred ninety-eight thousand, six hundred fifty-two".