645416544350 has 24 divisors (see below), whose sum is σ = 1209638714328. Its totient is φ = 256195877600.

The previous prime is 645416544341. The next prime is 645416544373. The reversal of 645416544350 is 53445614546.

645416544350 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 645416544295 and 645416544304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49261889 + ... + 49274988.

It is an arithmetic number, because the mean of its divisors is an integer number (50401613097).

Almost surely, 2^645416544350 is an apocalyptic number.

645416544350 is a deficient number, since it is larger than the sum of its proper divisors (564222169978).

645416544350 is a wasteful number, since it uses less digits than its factorization.

645416544350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98537020 (or 98537015 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 47.

The spelling of 645416544350 in words is "six hundred forty-five billion, four hundred sixteen million, five hundred forty-four thousand, three hundred fifty".