131685670356 has 12 divisors (see below), whose sum is σ = 307266564192. Its totient is φ = 43895223448.

The previous prime is 131685670349. The next prime is 131685670357. The reversal of 131685670356 is 653076586131.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×131685670356² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131685670299 and 131685670308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131685670357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5486902920 + ... + 5486902943.

It is an arithmetic number, because the mean of its divisors is an integer number (25605547016).

Almost surely, 2^131685670356 is an apocalyptic number.

It is an amenable number.

131685670356 is an abundant number, since it is smaller than the sum of its proper divisors (175580893836).

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

131685670356 is a wasteful number, since it uses less digits than its factorization.

131685670356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10973805870 (or 10973805868 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 51.

The spelling of 131685670356 in words is "one hundred thirty-one billion, six hundred eighty-five million, six hundred seventy thousand, three hundred fifty-six".