131950665306 has 16 divisors (see below), whose sum is σ = 293223700800. Its totient is φ = 43983555084.

The previous prime is 131950665257. The next prime is 131950665313. The reversal of 131950665306 is 603566059131.

131950665306 is a `hidden beast` number, since 1 + 3 + 1 + 9 + 50 + 66 + 530 + 6 = 666.

It is a Curzon number.

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, 1221765366 + ... + 1221765473.

It is an arithmetic number, because the mean of its divisors is an integer number (18326481300).

Almost surely, 2^131950665306 is an apocalyptic number.

131950665306 is an abundant number, since it is smaller than the sum of its proper divisors (161273035494).

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

131950665306 is a wasteful number, since it uses less digits than its factorization.

131950665306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2443530850 (or 2443530844 counting only the distinct ones).

The product of its (nonzero) digits is 437400, while the sum is 45.

The spelling of 131950665306 in words is "one hundred thirty-one billion, nine hundred fifty million, six hundred sixty-five thousand, three hundred six".