131640467280 has 160 divisors (see below), whose sum is σ = 468801018624. Its totient is φ = 29933273088.

The previous prime is 131640467261. The next prime is 131640467383. The reversal of 131640467280 is 82764046131.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 121242 + ... + 527238.

Almost surely, 2^131640467280 is an apocalyptic number.

131640467280 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 131640467280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234400509312).

131640467280 is an abundant number, since it is smaller than the sum of its proper divisors (337160551344).

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

131640467280 is a wasteful number, since it uses less digits than its factorization.

131640467280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406213 (or 406207 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The spelling of 131640467280 in words is "one hundred thirty-one billion, six hundred forty million, four hundred sixty-seven thousand, two hundred eighty".