133544056540 has 24 divisors (see below), whose sum is σ = 285733889280. Its totient is φ = 52409742528.

The previous prime is 133544056537. The next prime is 133544056561. The reversal of 133544056540 is 45650445331.

It is a junction number, because it is equal to n+sod(n) for n = 133544056493 and 133544056502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62991420 + ... + 62993539.

It is an arithmetic number, because the mean of its divisors is an integer number (11905578720).

Almost surely, 2^133544056540 is an apocalyptic number.

133544056540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133544056540 is an abundant number, since it is smaller than the sum of its proper divisors (152189832740).

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

133544056540 is a wasteful number, since it uses less digits than its factorization.

133544056540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125985021 (or 125985019 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 40.

The spelling of 133544056540 in words is "one hundred thirty-three billion, five hundred forty-four million, fifty-six thousand, five hundred forty".