10681015801 has 3 divisors (see below), whose sum is σ = 10681119151. Its totient is φ = 10680912452.

The previous prime is 10681015769. The next prime is 10681015819. The reversal of 10681015801 is 10851018601.

It is a happy number.

The square root of 10681015801 is 103349.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 1376484201 + 9304531600 = 37101^2 + 96460^2 .

It is not a de Polignac number, because 10681015801 - 2⁵ = 10681015769 is a prime.

It is a super-2 number, since 2×10681015801² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10681015841) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 51675 + ... + 155023.

Almost surely, 2^10681015801 is an apocalyptic number.

10681015801 is the 103349-th square number.

10681015801 is the 51675-th centered octagonal number.

It is an amenable number.

10681015801 is a deficient number, since it is larger than the sum of its proper divisors (103350).

10681015801 is an frugal number, since it uses more digits than its factorization.

10681015801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206698 (or 103349 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 31.

The spelling of 10681015801 in words is "ten billion, six hundred eighty-one million, fifteen thousand, eight hundred one".