320117025040 has 40 divisors (see below), whose sum is σ = 744404105088. Its totient is φ = 128024096640.

The previous prime is 320117025037. The next prime is 320117025049. The reversal of 320117025040 is 40520711023.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 320117024996 and 320117025014.

It is not an unprimeable number, because it can be changed into a prime (320117025049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102585 + ... + 806695.

Almost surely, 2^320117025040 is an apocalyptic number.

It is an amenable number.

320117025040 is an abundant number, since it is smaller than the sum of its proper divisors (424287080048).

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

320117025040 is a wasteful number, since it uses less digits than its factorization.

320117025040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709807 (or 709801 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

Adding to 320117025040 its reverse (40520711023), we get a palindrome (360637736063).

The spelling of 320117025040 in words is "three hundred twenty billion, one hundred seventeen million, twenty-five thousand, forty".