133121179660 has 24 divisors (see below), whose sum is σ = 319490831520. Its totient is φ = 45641547264.

The previous prime is 133121179649. The next prime is 133121179661. The reversal of 133121179660 is 66971121331.

It is not an unprimeable number, because it can be changed into a prime (133121179661) 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, 475432645 + ... + 475432924.

It is an arithmetic number, because the mean of its divisors is an integer number (13312117980).

Almost surely, 2^133121179660 is an apocalyptic number.

133121179660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133121179660 is an abundant number, since it is smaller than the sum of its proper divisors (186369651860).

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

133121179660 is a wasteful number, since it uses less digits than its factorization.

133121179660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950865585 (or 950865583 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 40.

The spelling of 133121179660 in words is "one hundred thirty-three billion, one hundred twenty-one million, one hundred seventy-nine thousand, six hundred sixty".