320660824242 has 32 divisors (see below), whose sum is σ = 740777949504. Its totient is φ = 91454067200.

The previous prime is 320660824223. The next prime is 320660824247. The reversal of 320660824242 is 242428066023.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 320660824242.

It is not an unprimeable number, because it can be changed into a prime (320660824247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142895859 + ... + 142898102.

It is an arithmetic number, because the mean of its divisors is an integer number (23149310922).

Almost surely, 2^320660824242 is an apocalyptic number.

320660824242 is an abundant number, since it is smaller than the sum of its proper divisors (420117125262).

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

320660824242 is a wasteful number, since it uses less digits than its factorization.

320660824242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285793994.

The product of its (nonzero) digits is 221184, while the sum is 39.

The spelling of 320660824242 in words is "three hundred twenty billion, six hundred sixty million, eight hundred twenty-four thousand, two hundred forty-two".