131283240664 has 16 divisors (see below), whose sum is σ = 246298966920. Its totient is φ = 65603516160.

The previous prime is 131283240637. The next prime is 131283240679. The reversal of 131283240664 is 466042382131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4748377 + ... + 4775944.

Almost surely, 2^131283240664 is an apocalyptic number.

It is an amenable number.

131283240664 is a deficient number, since it is larger than the sum of its proper divisors (115015726256).

131283240664 is a wasteful number, since it uses less digits than its factorization.

131283240664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9526050 (or 9526046 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 40.

The spelling of 131283240664 in words is "one hundred thirty-one billion, two hundred eighty-three million, two hundred forty thousand, six hundred sixty-four".