131202461666 has 16 divisors (see below), whose sum is σ = 200632464000. Its totient is φ = 64336120368.

The previous prime is 131202461659. The next prime is 131202461701. The reversal of 131202461666 is 666164202131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2763020 + ... + 2810103.

It is an arithmetic number, because the mean of its divisors is an integer number (12539529000).

Almost surely, 2^131202461666 is an apocalyptic number.

131202461666 is a deficient number, since it is larger than the sum of its proper divisors (69430002334).

131202461666 is a wasteful number, since it uses less digits than its factorization.

131202461666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5573353.

The product of its (nonzero) digits is 62208, while the sum is 38.

Adding to 131202461666 its reverse (666164202131), we get a palindrome (797366663797).

The spelling of 131202461666 in words is "one hundred thirty-one billion, two hundred two million, four hundred sixty-one thousand, six hundred sixty-six".