645622004334 has 8 divisors (see below), whose sum is σ = 1291244008680. Its totient is φ = 215207334776.

The previous prime is 645622004317. The next prime is 645622004341. The reversal of 645622004334 is 433400226546.

645622004334 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

645622004334 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 645622004292 and 645622004301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53801833689 + ... + 53801833700.

It is an arithmetic number, because the mean of its divisors is an integer number (161405501085).

Almost surely, 2^645622004334 is an apocalyptic number.

645622004334 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

645622004334 is a wasteful number, since it uses less digits than its factorization.

645622004334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107603667394.

The product of its (nonzero) digits is 414720, while the sum is 39.

The spelling of 645622004334 in words is "six hundred forty-five billion, six hundred twenty-two million, four thousand, three hundred thirty-four".