131660501322 has 16 divisors (see below), whose sum is σ = 300938288832. Its totient is φ = 37617286080.

The previous prime is 131660501321. The next prime is 131660501327. The reversal of 131660501322 is 223105066131.

It is a self number, because there is not a number n which added to its sum of digits gives 131660501322.

It is not an unprimeable number, because it can be changed into a prime (131660501321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1567386879 + ... + 1567386962.

It is an arithmetic number, because the mean of its divisors is an integer number (18808643052).

Almost surely, 2^131660501322 is an apocalyptic number.

131660501322 is an abundant number, since it is smaller than the sum of its proper divisors (169277787510).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131660501322 is a wasteful number, since it uses less digits than its factorization.

131660501322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3134773853.

The product of its (nonzero) digits is 6480, while the sum is 30.

Adding to 131660501322 its reverse (223105066131), we get a palindrome (354765567453).

The spelling of 131660501322 in words is "one hundred thirty-one billion, six hundred sixty million, five hundred one thousand, three hundred twenty-two".