133333479916 has 96 divisors (see below), whose sum is σ = 297266739840. Its totient is φ = 50896871424.

The previous prime is 133333479901. The next prime is 133333479919. The reversal of 133333479916 is 619974333331.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is not an unprimeable number, because it can be changed into a prime (133333479919) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23991010 + ... + 23996566.

It is an arithmetic number, because the mean of its divisors is an integer number (3096528540).

Almost surely, 2^133333479916 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133333479916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148633369920).

133333479916 is an abundant number, since it is smaller than the sum of its proper divisors (163933259924).

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

133333479916 is a wasteful number, since it uses less digits than its factorization.

133333479916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7883 (or 7881 counting only the distinct ones).

The product of its digits is 3306744, while the sum is 52.

The spelling of 133333479916 in words is "one hundred thirty-three billion, three hundred thirty-three million, four hundred seventy-nine thousand, nine hundred sixteen".