16608406131 has 40 divisors (see below), whose sum is σ = 25550553600. Its totient is φ = 10746581040.

The previous prime is 16608406127. The next prime is 16608406151. The reversal of 16608406131 is 13160480661.

16608406131 is a `hidden beast` number, since 1 + 6 + 608 + 40 + 6 + 1 + 3 + 1 = 666.

It is not a de Polignac number, because 16608406131 - 2² = 16608406127 is a prime.

It is a super-2 number, since 2×16608406131² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16608406151) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 355546 + ... + 399536.

It is an arithmetic number, because the mean of its divisors is an integer number (638763840).

Almost surely, 2^16608406131 is an apocalyptic number.

16608406131 is a deficient number, since it is larger than the sum of its proper divisors (8942147469).

16608406131 is an equidigital number, since it uses as much as digits as its factorization.

16608406131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44141 (or 44132 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

Adding to 16608406131 its reverse (13160480661), we get a palindrome (29768886792).

The spelling of 16608406131 in words is "sixteen billion, six hundred eight million, four hundred six thousand, one hundred thirty-one".