320660563421242 has 48 divisors (see below), whose sum is σ = 536591614093920. Its totient is φ = 143577144960480.

The previous prime is 320660563421147. The next prime is 320660563421281. The reversal of 320660563421242 is 242124365066023.

It is a junction number, because it is equal to n+sod(n) for n = 320660563421192 and 320660563421201.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1520556984 + ... + 1520767852.

It is an arithmetic number, because the mean of its divisors is an integer number (11178991960290).

Almost surely, 2^{320660563421242} is an apocalyptic number.

320660563421242 is a deficient number, since it is larger than the sum of its proper divisors (215931050672678).

320660563421242 is a wasteful number, since it uses less digits than its factorization.

320660563421242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304747 (or 304736 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 46.

The spelling of 320660563421242 in words is "three hundred twenty trillion, six hundred sixty billion, five hundred sixty-three million, four hundred twenty-one thousand, two hundred forty-two".