320141618988 has 24 divisors (see below), whose sum is σ = 772755632880. Its totient is φ = 103034084160.

The previous prime is 320141618983. The next prime is 320141619001. The reversal of 320141618988 is 889816141023.

It is a self number, because there is not a number n which added to its sum of digits gives 320141618988.

It is not an unprimeable number, because it can be changed into a prime (320141618983) 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, 459973243 + ... + 459973938.

It is an arithmetic number, because the mean of its divisors is an integer number (32198151370).

Almost surely, 2^320141618988 is an apocalyptic number.

It is an amenable number.

320141618988 is an abundant number, since it is smaller than the sum of its proper divisors (452614013892).

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

320141618988 is a wasteful number, since it uses less digits than its factorization.

320141618988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919947217 (or 919947215 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 51.

The spelling of 320141618988 in words is "three hundred twenty billion, one hundred forty-one million, six hundred eighteen thousand, nine hundred eighty-eight".