201545634768 has 40 divisors (see below), whose sum is σ = 521958009216. Its totient is φ = 67014336000.

The previous prime is 201545634629. The next prime is 201545634779. The reversal of 201545634768 is 867436545102.

It is a self number, because there is not a number n which added to its sum of digits gives 201545634768.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5216248 + ... + 5254743.

Almost surely, 2^201545634768 is an apocalyptic number.

It is an amenable number.

201545634768 is an abundant number, since it is smaller than the sum of its proper divisors (320412374448).

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

201545634768 is a wasteful number, since it uses less digits than its factorization.

201545634768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10471403 (or 10471397 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 51.

The spelling of 201545634768 in words is "two hundred one billion, five hundred forty-five million, six hundred thirty-four thousand, seven hundred sixty-eight".