130691387520 has 896 divisors, whose sum is σ = 515332886400. Its totient is φ = 31531991040.

The previous prime is 130691387513. The next prime is 130691387537. The reversal of 130691387520 is 25783196031.

130691387520 is a `hidden beast` number, since 1 + 3 + 0 + 6 + 91 + 38 + 7 + 520 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 203886400 + ... + 203887040.

Almost surely, 2^130691387520 is an apocalyptic number.

130691387520 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 130691387520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257666443200).

130691387520 is an abundant number, since it is smaller than the sum of its proper divisors (384641498880).

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

130691387520 is an equidigital number, since it uses as much as digits as its factorization.

130691387520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720 (or 693 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 130691387520 in words is "one hundred thirty billion, six hundred ninety-one million, three hundred eighty-seven thousand, five hundred twenty".