645203354614006 has 64 divisors (see below), whose sum is σ = 1061458176960000. Its totient is φ = 292961809324800.

The previous prime is 645203354613959. The next prime is 645203354614051. The reversal of 645203354614006 is 600416453302546.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 289594570 + ... + 291814018.

It is an arithmetic number, because the mean of its divisors is an integer number (16585284015000).

Almost surely, 2^{645203354614006} is an apocalyptic number.

645203354614006 is a deficient number, since it is larger than the sum of its proper divisors (416254822345994).

645203354614006 is a wasteful number, since it uses less digits than its factorization.

645203354614006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2221397.

The product of its (nonzero) digits is 6220800, while the sum is 49.

The spelling of 645203354614006 in words is "six hundred forty-five trillion, two hundred three billion, three hundred fifty-four million, six hundred fourteen thousand, six".