133530244333530 has 128 divisors (see below), whose sum is σ = 364944612519936. Its totient is φ = 30951832665600.

The previous prime is 133530244333489. The next prime is 133530244333561. The reversal of 133530244333530 is 35333442035331.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16767550 + ... + 23413910.

It is an arithmetic number, because the mean of its divisors is an integer number (2851129785312).

Almost surely, 2^{133530244333530} is an apocalyptic number.

133530244333530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 133530244333530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182472306259968).

133530244333530 is an abundant number, since it is smaller than the sum of its proper divisors (231414368186406).

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

133530244333530 is a wasteful number, since it uses less digits than its factorization.

133530244333530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6649052.

The product of its (nonzero) digits is 1749600, while the sum is 42.

Adding to 133530244333530 its reverse (35333442035331), we get a palindrome (168863686368861).

The spelling of 133530244333530 in words is "one hundred thirty-three trillion, five hundred thirty billion, two hundred forty-four million, three hundred thirty-three thousand, five hundred thirty".