131668620876 has 96 divisors (see below), whose sum is σ = 367882905600. Its totient is φ = 40484646720.

The previous prime is 131668620749. The next prime is 131668620883. The reversal of 131668620876 is 678026866131.

131668620876 is a `hidden beast` number, since 1 + 3 + 1 + 6 + 6 + 8 + 620 + 8 + 7 + 6 = 666.

131668620876 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 1987771 + ... + 2052941.

It is an arithmetic number, because the mean of its divisors is an integer number (3832113600).

Almost surely, 2^131668620876 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131668620876, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183941452800).

131668620876 is an abundant number, since it is smaller than the sum of its proper divisors (236214284724).

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

131668620876 is a wasteful number, since it uses less digits than its factorization.

131668620876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66636 (or 66628 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 131668620876 in words is "one hundred thirty-one billion, six hundred sixty-eight million, six hundred twenty thousand, eight hundred seventy-six".