20320655552342 has 4 divisors (see below), whose sum is σ = 30480983328516. Its totient is φ = 10160327776170.

The previous prime is 20320655552269. The next prime is 20320655552347. The reversal of 20320655552342 is 24325555602302.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 20320655552293 and 20320655552302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20320655552347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5080163888084 + ... + 5080163888087.

It is an arithmetic number, because the mean of its divisors is an integer number (7620245832129).

Almost surely, 2^{20320655552342} is an apocalyptic number.

20320655552342 is a deficient number, since it is larger than the sum of its proper divisors (10160327776174).

20320655552342 is a wasteful number, since it uses less digits than its factorization.

20320655552342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10160327776173.

The product of its (nonzero) digits is 2160000, while the sum is 44.

The spelling of 20320655552342 in words is "twenty trillion, three hundred twenty billion, six hundred fifty-five million, five hundred fifty-two thousand, three hundred forty-two".