325767536640 has 1680 divisors, whose sum is σ = 1462683676608. Its totient is φ = 67905257472.

The previous prime is 325767536639. The next prime is 325767536683. The reversal of 325767536640 is 46635767523.

325767536640 is a `hidden beast` number, since 3 + 2 + 5 + 7 + 67 + 536 + 6 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (1680).

It is a super-2 number, since 2×325767536640² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 3924910039 + ... + 3924910121.

Almost surely, 2^325767536640 is an apocalyptic number.

325767536640 is a gapful number since it is divisible by the number (30) 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 325767536640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (731341838304).

325767536640 is an abundant number, since it is smaller than the sum of its proper divisors (1136916139968).

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

325767536640 is an equidigital number, since it uses as much as digits as its factorization.

325767536640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 19051200, while the sum is 54.

The spelling of 325767536640 in words is "three hundred twenty-five billion, seven hundred sixty-seven million, five hundred thirty-six thousand, six hundred forty".