320642211160542 has 16 divisors (see below), whose sum is σ = 641321237756160. Its totient is φ = 106874601147672.

The previous prime is 320642211160519. The next prime is 320642211160549. The reversal of 320642211160542 is 245061112246023.

It is a super-2 number, since 2×320642211160542² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 320642211160542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320642211160549) 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, 1533863238 + ... + 1534072265.

It is an arithmetic number, because the mean of its divisors is an integer number (40082577359760).

Almost surely, 2^{320642211160542} is an apocalyptic number.

320642211160542 is an abundant number, since it is smaller than the sum of its proper divisors (320679026595618).

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

320642211160542 is a wasteful number, since it uses less digits than its factorization.

320642211160542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3067952927.

The product of its (nonzero) digits is 138240, while the sum is 39.

The spelling of 320642211160542 in words is "three hundred twenty trillion, six hundred forty-two billion, two hundred eleven million, one hundred sixty thousand, five hundred forty-two".