131660186800 has 120 divisors (see below), whose sum is σ = 326740615040. Its totient is φ = 50930380800.

The previous prime is 131660186771. The next prime is 131660186809. The reversal of 131660186800 is 8681066131.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (131660186809) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25156984 + ... + 25162216.

Almost surely, 2^131660186800 is an apocalyptic number.

131660186800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131660186800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163370307520).

131660186800 is an abundant number, since it is smaller than the sum of its proper divisors (195080428240).

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

131660186800 is a wasteful number, since it uses less digits than its factorization.

131660186800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7311 (or 7300 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 40.

The spelling of 131660186800 in words is "one hundred thirty-one billion, six hundred sixty million, one hundred eighty-six thousand, eight hundred".