264660533928 has 192 divisors, whose sum is σ = 855541589760. Its totient is φ = 72267199488.

The previous prime is 264660533927. The next prime is 264660533933. The reversal of 264660533928 is 829335066462.

It is a happy number.

264660533928 is a `hidden beast` number, since 2 + 6 + 4 + 6 + 605 + 3 + 3 + 9 + 28 = 666.

264660533928 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (264660533927) 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 47 ways as a sum of consecutive naturals, for example, 14330076 + ... + 14348532.

It is an arithmetic number, because the mean of its divisors is an integer number (4455945780).

Almost surely, 2^264660533928 is an apocalyptic number.

264660533928 is a gapful number since it is divisible by the number (28) 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 264660533928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (427770794880).

264660533928 is an abundant number, since it is smaller than the sum of its proper divisors (590881055832).

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

264660533928 is a wasteful number, since it uses less digits than its factorization.

264660533928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19736 (or 19729 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 54.

The spelling of 264660533928 in words is "two hundred sixty-four billion, six hundred sixty million, five hundred thirty-three thousand, nine hundred twenty-eight".