133211330448 has 160 divisors (see below), whose sum is σ = 410588006400. Its totient is φ = 36388036608.

The previous prime is 133211330429. The next prime is 133211330479. The reversal of 133211330448 is 844033112331.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31056688 + ... + 31060976.

It is an arithmetic number, because the mean of its divisors is an integer number (2566175040).

Almost surely, 2^133211330448 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 133211330448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205294003200).

133211330448 is an abundant number, since it is smaller than the sum of its proper divisors (277376675952).

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

133211330448 is a wasteful number, since it uses less digits than its factorization.

133211330448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8349 (or 8343 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

Adding to 133211330448 its reverse (844033112331), we get a palindrome (977244442779).

The spelling of 133211330448 in words is "one hundred thirty-three billion, two hundred eleven million, three hundred thirty thousand, four hundred forty-eight".