320025041040 has 80 divisors (see below), whose sum is σ = 992522778048. Its totient is φ = 85301718528.

The previous prime is 320025041033. The next prime is 320025041057. The reversal of 320025041040 is 40140520023.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 320025040998 and 320025041016.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238839 + ... + 834921.

Almost surely, 2^320025041040 is an apocalyptic number.

320025041040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

320025041040 is an abundant number, since it is smaller than the sum of its proper divisors (672497737008).

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

320025041040 is a wasteful number, since it uses less digits than its factorization.

320025041040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598336 (or 598330 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

Adding to 320025041040 its reverse (40140520023), we get a palindrome (360165561063).

The spelling of 320025041040 in words is "three hundred twenty billion, twenty-five million, forty-one thousand, forty".