320040917148 has 24 divisors (see below), whose sum is σ = 764975851920. Its totient is φ = 104078346880.

The previous prime is 320040917123. The next prime is 320040917149. The reversal of 320040917148 is 841719040023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320040917149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 325244343 + ... + 325245326.

It is an arithmetic number, because the mean of its divisors is an integer number (31873993830).

Almost surely, 2^320040917148 is an apocalyptic number.

It is an amenable number.

320040917148 is an abundant number, since it is smaller than the sum of its proper divisors (444934934772).

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

320040917148 is a wasteful number, since it uses less digits than its factorization.

320040917148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650489717 (or 650489715 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The spelling of 320040917148 in words is "three hundred twenty billion, forty million, nine hundred seventeen thousand, one hundred forty-eight".