133221664488 has 256 divisors, whose sum is σ = 396887040000. Its totient is φ = 36815385600.

The previous prime is 133221664423. The next prime is 133221664489. The reversal of 133221664488 is 884466122331.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (133221664489) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 30630538 + ... + 30634886.

It is an arithmetic number, because the mean of its divisors is an integer number (1550340000).

Almost surely, 2^133221664488 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 133221664488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198443520000).

133221664488 is an abundant number, since it is smaller than the sum of its proper divisors (263665375512).

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

133221664488 is a wasteful number, since it uses less digits than its factorization.

133221664488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4616 (or 4612 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 48.

The spelling of 133221664488 in words is "one hundred thirty-three billion, two hundred twenty-one million, six hundred sixty-four thousand, four hundred eighty-eight".