131665054100 has 18 divisors (see below), whose sum is σ = 285713167614. Its totient is φ = 52666021600.

The previous prime is 131665054061. The next prime is 131665054117. The reversal of 131665054100 is 1450566131.

131665054100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 7470836356 + 124194217744 = 86434^2 + 352412^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 658325171 + ... + 658325370.

Almost surely, 2^131665054100 is an apocalyptic number.

131665054100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131665054100 is an abundant number, since it is smaller than the sum of its proper divisors (154048113514).

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

131665054100 is a wasteful number, since it uses less digits than its factorization.

131665054100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316650555 (or 1316650548 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The spelling of 131665054100 in words is "one hundred thirty-one billion, six hundred sixty-five million, fifty-four thousand, one hundred".