131680448466638 has 16 divisors (see below), whose sum is σ = 198118323601920. Its totient is φ = 65641009097400.

The previous prime is 131680448466599. The next prime is 131680448466673. The reversal of 131680448466638 is 836664844086131.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234670853 + ... + 235231311.

It is an arithmetic number, because the mean of its divisors is an integer number (12382395225120).

Almost surely, 2^{131680448466638} is an apocalyptic number.

131680448466638 is a deficient number, since it is larger than the sum of its proper divisors (66437875135282).

131680448466638 is a wasteful number, since it uses less digits than its factorization.

131680448466638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915703.

The product of its (nonzero) digits is 382205952, while the sum is 68.

The spelling of 131680448466638 in words is "one hundred thirty-one trillion, six hundred eighty billion, four hundred forty-eight million, four hundred sixty-six thousand, six hundred thirty-eight".