131422820166 has 32 divisors (see below), whose sum is σ = 318600777600. Its totient is φ = 39825096840.

The previous prime is 131422820147. The next prime is 131422820183. The reversal of 131422820166 is 661028224131.

It is a happy number.

131422820166 is a `hidden beast` number, since 1 + 314 + 2 + 282 + 0 + 1 + 66 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 131422820166.

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 15 ways as a sum of consecutive naturals, for example, 110624676 + ... + 110625863.

It is an arithmetic number, because the mean of its divisors is an integer number (9956274300).

Almost surely, 2^131422820166 is an apocalyptic number.

131422820166 is an abundant number, since it is smaller than the sum of its proper divisors (187177957434).

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

131422820166 is a wasteful number, since it uses less digits than its factorization.

131422820166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221250561 (or 221250555 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The spelling of 131422820166 in words is "one hundred thirty-one billion, four hundred twenty-two million, eight hundred twenty thousand, one hundred sixty-six".