20320603626442 has 48 divisors (see below), whose sum is σ = 35543488176000. Its totient is φ = 8687695528512.

The previous prime is 20320603626383. The next prime is 20320603626487. The reversal of 20320603626442 is 24462630602302.

It is a super-2 number, since 2×20320603626442² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20320603626395 and 20320603626404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 116935663 + ... + 117109309.

It is an arithmetic number, because the mean of its divisors is an integer number (740489337000).

Almost surely, 2^{20320603626442} is an apocalyptic number.

20320603626442 is a deficient number, since it is larger than the sum of its proper divisors (15222884549558).

20320603626442 is a wasteful number, since it uses less digits than its factorization.

20320603626442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176555 (or 176548 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 40.

The spelling of 20320603626442 in words is "twenty trillion, three hundred twenty billion, six hundred three million, six hundred twenty-six thousand, four hundred forty-two".