20351310555044 has 24 divisors (see below), whose sum is σ = 40702754523648. Its totient is φ = 8721961649280.

The previous prime is 20351310555031. The next prime is 20351310555053. The reversal of 20351310555044 is 44055501315302.

It is a junction number, because it is equal to n+sod(n) for n = 20351310554989 and 20351310555007.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9047804 + ... + 11070924.

It is an arithmetic number, because the mean of its divisors is an integer number (1695948105152).

Almost surely, 2^{20351310555044} is an apocalyptic number.

It is an amenable number.

20351310555044 is an abundant number, since it is smaller than the sum of its proper divisors (20351443968604).

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

20351310555044 is a wasteful number, since it uses less digits than its factorization.

20351310555044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2382395 (or 2382393 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 38.

The spelling of 20351310555044 in words is "twenty trillion, three hundred fifty-one billion, three hundred ten million, five hundred fifty-five thousand, forty-four".