131366460420 has 96 divisors (see below), whose sum is σ = 440133805440. Its totient is φ = 32336357760.

The previous prime is 131366460419. The next prime is 131366460457. The reversal of 131366460420 is 24064663131.

131366460420 is a `hidden beast` number, since 1 + 3 + 1 + 3 + 6 + 646 + 0 + 4 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 9349566 + ... + 9363605.

It is an arithmetic number, because the mean of its divisors is an integer number (4584727140).

Almost surely, 2^131366460420 is an apocalyptic number.

131366460420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131366460420 is an abundant number, since it is smaller than the sum of its proper divisors (308767345020).

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

131366460420 is a wasteful number, since it uses less digits than its factorization.

131366460420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18713202 (or 18713194 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The spelling of 131366460420 in words is "one hundred thirty-one billion, three hundred sixty-six million, four hundred sixty thousand, four hundred twenty".