99765846801 has 20 divisors (see below), whose sum is σ = 149043053412. Its totient is φ = 66506047488.

The previous prime is 99765846797. The next prime is 99765846841. The reversal of 99765846801 is 10864856799.

It can be written as a sum of positive squares in 2 ways, for example, as 28022760000 + 71743086801 = 167400^2 + 267849^2 .

It is not a de Polignac number, because 99765846801 - 2² = 99765846797 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99765846841) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1512625 + ... + 1577201.

Almost surely, 2^99765846801 is an apocalyptic number.

It is an amenable number.

99765846801 is a deficient number, since it is larger than the sum of its proper divisors (49277206611).

99765846801 is a wasteful number, since it uses less digits than its factorization.

99765846801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83662 (or 83653 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 63.

The spelling of 99765846801 in words is "ninety-nine billion, seven hundred sixty-five million, eight hundred forty-six thousand, eight hundred one".