645416541326 has 8 divisors (see below), whose sum is σ = 970762755360. Its totient is φ = 321828956208.

The previous prime is 645416541313. The next prime is 645416541347. The reversal of 645416541326 is 623145614546.

645416541326 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.

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, 439656311 + ... + 439657778.

It is an arithmetic number, because the mean of its divisors is an integer number (121345344420).

Almost surely, 2^645416541326 is an apocalyptic number.

645416541326 is a deficient number, since it is larger than the sum of its proper divisors (325346214034).

645416541326 is a wasteful number, since it uses less digits than its factorization.

645416541326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879314458.

The product of its digits is 2073600, while the sum is 47.

The spelling of 645416541326 in words is "six hundred forty-five billion, four hundred sixteen million, five hundred forty-one thousand, three hundred twenty-six".