20310445056 has 88 divisors (see below), whose sum is σ = 59056179264. Its totient is φ = 6154670080.

The previous prime is 20310445009. The next prime is 20310445073. The reversal of 20310445056 is 65054401302.

It is a tau number, because it is divible by the number of its divisors (88).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266730 + ... + 334313.

Almost surely, 2^20310445056 is an apocalyptic number.

It is an amenable number.

20310445056 is an abundant number, since it is smaller than the sum of its proper divisors (38745734208).

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

20310445056 is a wasteful number, since it uses less digits than its factorization.

20310445056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601077 (or 601059 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 20310445056 its reverse (65054401302), we get a palindrome (85364846358).

It can be divided in two parts, 203104 and 45056, that added together give a triangular number (248160 = T₇₀₄).

The spelling of 20310445056 in words is "twenty billion, three hundred ten million, four hundred forty-five thousand, fifty-six".