10406731661 has 8 divisors (see below), whose sum is σ = 10956837600. Its totient is φ = 9856864080.

The previous prime is 10406731649. The next prime is 10406731667. The reversal of 10406731661 is 16613760401.

10406731661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10406731661 - 2⁶ = 10406731597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10406731667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33806 + ... + 148176.

It is an arithmetic number, because the mean of its divisors is an integer number (1369604700).

Almost surely, 2^10406731661 is an apocalyptic number.

It is an amenable number.

10406731661 is a deficient number, since it is larger than the sum of its proper divisors (550105939).

10406731661 is a wasteful number, since it uses less digits than its factorization.

10406731661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119179.

The product of its (nonzero) digits is 18144, while the sum is 35.

The spelling of 10406731661 in words is "ten billion, four hundred six million, seven hundred thirty-one thousand, six hundred sixty-one".