131260666550 has 192 divisors, whose sum is σ = 279837089280. Its totient is φ = 45467136000.

The previous prime is 131260666499. The next prime is 131260666573. The reversal of 131260666550 is 55666062131.

It is a junction number, because it is equal to n+sod(n) for n = 131260666498 and 131260666507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 95046860 + ... + 95048240.

It is an arithmetic number, because the mean of its divisors is an integer number (1457484840).

Almost surely, 2^131260666550 is an apocalyptic number.

131260666550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131260666550 is an abundant number, since it is smaller than the sum of its proper divisors (148576422730).

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

131260666550 is a wasteful number, since it uses less digits than its factorization.

131260666550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1579 (or 1574 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 41.

The spelling of 131260666550 in words is "one hundred thirty-one billion, two hundred sixty million, six hundred sixty-six thousand, five hundred fifty".