131616766 has 8 divisors (see below), whose sum is σ = 198750600. Its totient is φ = 65366568.

The previous prime is 131616757. The next prime is 131616767. The reversal of 131616766 is 667616131.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131616767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220536 + ... + 221131.

It is an arithmetic number, because the mean of its divisors is an integer number (24843825).

Almost surely, 2^131616766 is an apocalyptic number.

131616766 is a deficient number, since it is larger than the sum of its proper divisors (67133834).

131616766 is a wasteful number, since it uses less digits than its factorization.

131616766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441818.

The product of its digits is 27216, while the sum is 37.

The square root of 131616766 is about 11472.4350510256. The cubic root of 131616766 is about 508.6711091141.

The spelling of 131616766 in words is "one hundred thirty-one million, six hundred sixteen thousand, seven hundred sixty-six".