10660492731681 has 27 divisors (see below), whose sum is σ = 16674303186099. Its totient is φ = 6560224858512.

The previous prime is 10660492731667. The next prime is 10660492731683. The reversal of 10660492731681 is 18613729406601.

The square root of 10660492731681 is 3265041.

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

10660492731681 is a `hidden beast` number, since 1 + 0 + 6 + 6 + 0 + 492 + 73 + 1 + 6 + 81 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1576995966225 + 9083496765456 = 1255785^2 + 3013884^2 .

It is not a de Polignac number, because 10660492731681 - 2⁵ = 10660492731649 is a prime.

It is a super-2 number, since 2×10660492731681² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10660492731683) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 127294740 + ... + 127378458.

Almost surely, 2^{10660492731681} is an apocalyptic number.

10660492731681 is the 3265041-st square number.

10660492731681 is the 1632521-st centered octagonal number.

It is an amenable number.

10660492731681 is a deficient number, since it is larger than the sum of its proper divisors (6013810454418).

10660492731681 is an frugal number, since it uses more digits than its factorization.

10660492731681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167470 (or 83735 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 10660492731681 in words is "ten trillion, six hundred sixty billion, four hundred ninety-two million, seven hundred thirty-one thousand, six hundred eighty-one".