20820146311846 has 32 divisors (see below), whose sum is σ = 36297174735360. Its totient is φ = 8771550609600.

The previous prime is 20820146311829. The next prime is 20820146311879. The reversal of 20820146311846 is 64811364102802.

It is a junction number, because it is equal to n+sod(n) for n = 20820146311796 and 20820146311805.

It is a congruent number.

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, 69557626 + ... + 69856306.

It is an arithmetic number, because the mean of its divisors is an integer number (1134286710480).

Almost surely, 2^{20820146311846} is an apocalyptic number.

20820146311846 is a deficient number, since it is larger than the sum of its proper divisors (15477028423514).

20820146311846 is a wasteful number, since it uses less digits than its factorization.

20820146311846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383140.

The product of its (nonzero) digits is 442368, while the sum is 46.

The spelling of 20820146311846 in words is "twenty trillion, eight hundred twenty billion, one hundred forty-six million, three hundred eleven thousand, eight hundred forty-six".