131663436366 has 64 divisors (see below), whose sum is σ = 336311087616. Its totient is φ = 33364185600.

The previous prime is 131663436347. The next prime is 131663436379. The reversal of 131663436366 is 663634366131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3456495 + ... + 3494378.

It is an arithmetic number, because the mean of its divisors is an integer number (5254860744).

Almost surely, 2^131663436366 is an apocalyptic number.

131663436366 is an abundant number, since it is smaller than the sum of its proper divisors (204647651250).

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

131663436366 is a wasteful number, since it uses less digits than its factorization.

131663436366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6950937.

The product of its digits is 2519424, while the sum is 48.

The spelling of 131663436366 in words is "one hundred thirty-one billion, six hundred sixty-three million, four hundred thirty-six thousand, three hundred sixty-six".