133159666176 has 400 divisors, whose sum is σ = 413249050368. Its totient is φ = 42655334400.

The previous prime is 133159666153. The next prime is 133159666219. The reversal of 133159666176 is 671666951331.

It is a happy number.

It is a super-2 number, since 2×133159666176² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 120724441 + ... + 120725543.

Almost surely, 2^133159666176 is an apocalyptic number.

133159666176 is a gapful number since it is divisible by the number (16) 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 133159666176, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206624525184).

133159666176 is an abundant number, since it is smaller than the sum of its proper divisors (280089384192).

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

133159666176 is an equidigital number, since it uses as much as digits as its factorization.

133159666176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245 (or 1220 counting only the distinct ones).

The product of its digits is 3674160, while the sum is 54.

The spelling of 133159666176 in words is "one hundred thirty-three billion, one hundred fifty-nine million, six hundred sixty-six thousand, one hundred seventy-six".