20145320506042 has 8 divisors (see below), whose sum is σ = 31192754332032. Its totient is φ = 9747735728700.

The previous prime is 20145320506009. The next prime is 20145320506061. The reversal of 20145320506042 is 24060502354102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20145320505989 and 20145320506007.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162462262084 + ... + 162462262207.

It is an arithmetic number, because the mean of its divisors is an integer number (3899094291504).

Almost surely, 2^{20145320506042} is an apocalyptic number.

20145320506042 is a deficient number, since it is larger than the sum of its proper divisors (11047433825990).

20145320506042 is a wasteful number, since it uses less digits than its factorization.

20145320506042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324924524324.

The product of its (nonzero) digits is 57600, while the sum is 34.

The spelling of 20145320506042 in words is "twenty trillion, one hundred forty-five billion, three hundred twenty million, five hundred six thousand, forty-two".