133450371520 has 56 divisors (see below), whose sum is σ = 317827755504. Its totient is φ = 53371908096.

The previous prime is 133450371517. The next prime is 133450371539. The reversal of 133450371520 is 25173054331.

It is a super-2 number, since 2×133450371520² (a number of 23 digits) contains 22 as substring.

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, 2309704 + ... + 2366776.

It is an arithmetic number, because the mean of its divisors is an integer number (5675495634).

Almost surely, 2^133450371520 is an apocalyptic number.

133450371520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133450371520 is an abundant number, since it is smaller than the sum of its proper divisors (184377383984).

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

133450371520 is an equidigital number, since it uses as much as digits as its factorization.

133450371520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64397 (or 64387 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 34.

The spelling of 133450371520 in words is "one hundred thirty-three billion, four hundred fifty million, three hundred seventy-one thousand, five hundred twenty".