133864386560 has 416 divisors, whose sum is σ = 361352845440. Its totient is φ = 47336914944.

The previous prime is 133864386553. The next prime is 133864386581. The reversal of 133864386560 is 65683468331.

It is a congruent number.

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, 584560526 + ... + 584560754.

Almost surely, 2^133864386560 is an apocalyptic number.

133864386560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133864386560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180676422720).

133864386560 is an abundant number, since it is smaller than the sum of its proper divisors (227488458880).

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

133864386560 is a wasteful number, since it uses less digits than its factorization.

133864386560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371 (or 349 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 53.

The spelling of 133864386560 in words is "one hundred thirty-three billion, eight hundred sixty-four million, three hundred eighty-six thousand, five hundred sixty".