131650664 has 16 divisors (see below), whose sum is σ = 246966720. Its totient is φ = 65792880.

The previous prime is 131650663. The next prime is 131650667. The reversal of 131650664 is 466056131.

It is a self number, because there is not a number n which added to its sum of digits gives 131650664.

It is not an unprimeable number, because it can be changed into a prime (131650663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29969 + ... + 34079.

It is an arithmetic number, because the mean of its divisors is an integer number (15435420).

Almost surely, 2^131650664 is an apocalyptic number.

It is an amenable number.

131650664 is a deficient number, since it is larger than the sum of its proper divisors (115316056).

131650664 is a wasteful number, since it uses less digits than its factorization.

131650664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8120 (or 8116 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 131650664 is about 11473.9123231790. The cubic root of 131650664 is about 508.7147749116.

The spelling of 131650664 in words is "one hundred thirty-one million, six hundred fifty thousand, six hundred sixty-four".