133681263586240 has 56 divisors (see below), whose sum is σ = 318331734269472. Its totient is φ = 53471963642880.

The previous prime is 133681263586217. The next prime is 133681263586243. The reversal of 133681263586240 is 42685362186331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133681263586243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30289702 + ... + 34421338.

It is an arithmetic number, because the mean of its divisors is an integer number (5684495254812).

Almost surely, 2^{133681263586240} is an apocalyptic number.

133681263586240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133681263586240 is an abundant number, since it is smaller than the sum of its proper divisors (184650470683232).

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

133681263586240 is a wasteful number, since it uses less digits than its factorization.

133681263586240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4232765 (or 4232755 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 58.

The spelling of 133681263586240 in words is "one hundred thirty-three trillion, six hundred eighty-one billion, two hundred sixty-three million, five hundred eighty-six thousand, two hundred forty".