20310456466643 has 24 divisors (see below), whose sum is σ = 23988443257440. Its totient is φ = 16844878108800.

The previous prime is 20310456466613. The next prime is 20310456466649. The reversal of 20310456466643 is 34666465401302.

It is a de Polignac number, because none of the positive numbers 2^k-20310456466643 is a prime.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 20310456466591 and 20310456466600.

It is not an unprimeable number, because it can be changed into a prime (20310456466649) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45717623 + ... + 46159743.

It is an arithmetic number, because the mean of its divisors is an integer number (999518469060).

Almost surely, 2^{20310456466643} is an apocalyptic number.

20310456466643 is a deficient number, since it is larger than the sum of its proper divisors (3677986790797).

20310456466643 is an equidigital number, since it uses as much as digits as its factorization.

20310456466643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449019 (or 448988 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 50.

The spelling of 20310456466643 in words is "twenty trillion, three hundred ten billion, four hundred fifty-six million, four hundred sixty-six thousand, six hundred forty-three".