325153440000 has 540 divisors, whose sum is σ = 1215030953136. Its totient is φ = 86697216000.

The previous prime is 325153439977. The next prime is 325153440037. The reversal of 325153440000 is 44351523.

325153440000 is a `hidden beast` number, since 3 + 251 + 5 + 3 + 4 + 400 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (540).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 38875819 + ... + 38884181.

Almost surely, 2^325153440000 is an apocalyptic number.

325153440000 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 325153440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (607515476568).

325153440000 is an abundant number, since it is smaller than the sum of its proper divisors (889877513136).

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

325153440000 is an frugal number, since it uses more digits than its factorization.

325153440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8414 (or 8373 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 325153440000 its reverse (44351523), we get a palindrome (325197791523).

The spelling of 325153440000 in words is "three hundred twenty-five billion, one hundred fifty-three million, four hundred forty thousand".