245164346643 has 4 divisors (see below), whose sum is σ = 326885795528. Its totient is φ = 163442897760.

The previous prime is 245164346629. The next prime is 245164346663. The reversal of 245164346643 is 346643461542.

245164346643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 245164346643 - 2¹⁰ = 245164345619 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 245164346592 and 245164346601.

It is not an unprimeable number, because it can be changed into a prime (245164346663) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 40860724438 + ... + 40860724443.

It is an arithmetic number, because the mean of its divisors is an integer number (81721448882).

Almost surely, 2^245164346643 is an apocalyptic number.

245164346643 is a deficient number, since it is larger than the sum of its proper divisors (81721448885).

245164346643 is an equidigital number, since it uses as much as digits as its factorization.

245164346643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81721448884.

The product of its digits is 4976640, while the sum is 48.

The spelling of 245164346643 in words is "two hundred forty-five billion, one hundred sixty-four million, three hundred forty-six thousand, six hundred forty-three".