131653455554646 has 24 divisors (see below), whose sum is σ = 285341677063560. Its totient is φ = 43870250821536.

The previous prime is 131653455554629. The next prime is 131653455554683. The reversal of 131653455554646 is 646455554356131.

It is a happy number.

131653455554646 is a `hidden beast` number, since 1 + 3 + 1 + 6 + 5 + 3 + 45 + 5 + 5 + 546 + 46 = 666.

It is a super-2 number, since 2×131653455554646² (a number of 29 digits) contains 22 as substring.

It is a Curzon 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 11 ways as a sum of consecutive naturals, for example, 1186139911 + ... + 1186250898.

It is an arithmetic number, because the mean of its divisors is an integer number (11889236544315).

Almost surely, 2^{131653455554646} is an apocalyptic number.

131653455554646 is an abundant number, since it is smaller than the sum of its proper divisors (153688221508914).

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

131653455554646 is a wasteful number, since it uses less digits than its factorization.

131653455554646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2372393900 (or 2372393897 counting only the distinct ones).

The product of its digits is 388800000, while the sum is 63.

The spelling of 131653455554646 in words is "one hundred thirty-one trillion, six hundred fifty-three billion, four hundred fifty-five million, five hundred fifty-four thousand, six hundred forty-six".