133158350520 has 512 divisors, whose sum is σ = 485086291200. Its totient is φ = 32296402944.

The previous prime is 133158350513. The next prime is 133158350573. The reversal of 133158350520 is 25053851331.

133158350520 is a `hidden beast` number, since 1 + 3 + 3 + 1 + 5 + 83 + 50 + 520 = 666.

It is a super-2 number, since 2×133158350520² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 425425884 + ... + 425426196.

Almost surely, 2^133158350520 is an apocalyptic number.

133158350520 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 133158350520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242543145600).

133158350520 is an abundant number, since it is smaller than the sum of its proper divisors (351927940680).

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

133158350520 is a wasteful number, since it uses less digits than its factorization.

133158350520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696 (or 686 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 133158350520 in words is "one hundred thirty-three billion, one hundred fifty-eight million, three hundred fifty thousand, five hundred twenty".