20320040220324 has 48 divisors (see below), whose sum is σ = 51317199964800. Its totient is φ = 6220901364480.

The previous prime is 20320040220281. The next prime is 20320040220373. The reversal of 20320040220324 is 42302204002302.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20320040220294 and 20320040220303.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 327247017 + ... + 327309104.

It is an arithmetic number, because the mean of its divisors is an integer number (1069108332600).

Almost surely, 2^{20320040220324} is an apocalyptic number.

It is an amenable number.

20320040220324 is an abundant number, since it is smaller than the sum of its proper divisors (30997159744476).

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

20320040220324 is a wasteful number, since it uses less digits than its factorization.

20320040220324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654556340 (or 654556338 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 20320040220324 its reverse (42302204002302), we get a palindrome (62622244222626).

The spelling of 20320040220324 in words is "twenty trillion, three hundred twenty billion, forty million, two hundred twenty thousand, three hundred twenty-four".