645466622110 has 16 divisors (see below), whose sum is σ = 1230183444816. Its totient is φ = 242999198848.

The previous prime is 645466622077. The next prime is 645466622147. The reversal of 645466622110 is 11226664546.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1898431072 + ... + 1898431411.

It is an arithmetic number, because the mean of its divisors is an integer number (76886465301).

Almost surely, 2^645466622110 is an apocalyptic number.

645466622110 is a deficient number, since it is larger than the sum of its proper divisors (584716822706).

645466622110 is a wasteful number, since it uses less digits than its factorization.

645466622110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3796862507.

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 645466622110 in words is "six hundred forty-five billion, four hundred sixty-six million, six hundred twenty-two thousand, one hundred ten".