132866665750728 has 384 divisors, whose sum is σ = 449427257959680. Its totient is φ = 34526701578240.

The previous prime is 132866665750723. The next prime is 132866665750739. The reversal of 132866665750728 is 827057566668231.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (132866665750723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 202515858 + ... + 203170878.

It is an arithmetic number, because the mean of its divisors is an integer number (1170383484270).

Almost surely, 2^{132866665750728} is an apocalyptic number.

132866665750728 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 132866665750728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224713628979840).

132866665750728 is an abundant number, since it is smaller than the sum of its proper divisors (316560592208952).

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

132866665750728 is a wasteful number, since it uses less digits than its factorization.

132866665750728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655509 (or 655502 counting only the distinct ones).

The product of its (nonzero) digits is 1219276800, while the sum is 72.

The spelling of 132866665750728 in words is "one hundred thirty-two trillion, eight hundred sixty-six billion, six hundred sixty-five million, seven hundred fifty thousand, seven hundred twenty-eight".