325678661280 has 384 divisors, whose sum is σ = 1304914060800. Its totient is φ = 74315169792.

The previous prime is 325678661279. The next prime is 325678661309. The reversal of 325678661280 is 82166876523.

325678661280 is a `hidden beast` number, since 3 + 2 + 567 + 8 + 66 + 12 + 8 + 0 = 666.

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 63 ways as a sum of consecutive naturals, for example, 18528336 + ... + 18545904.

It is an arithmetic number, because the mean of its divisors is an integer number (3398213700).

Almost surely, 2^325678661280 is an apocalyptic number.

325678661280 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 325678661280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (652457030400).

325678661280 is an abundant number, since it is smaller than the sum of its proper divisors (979235399520).

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

325678661280 is a wasteful number, since it uses less digits than its factorization.

325678661280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18213 (or 18199 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 325678661280 in words is "three hundred twenty-five billion, six hundred seventy-eight million, six hundred sixty-one thousand, two hundred eighty".