645565334462 has 8 divisors (see below), whose sum is σ = 975416235696. Its totient is φ = 320426589232.

The previous prime is 645565334461. The next prime is 645565334467. The reversal of 645565334462 is 264433565546.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (645565334461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1178038658 + ... + 1178039205.

It is an arithmetic number, because the mean of its divisors is an integer number (121927029462).

Almost surely, 2^645565334462 is an apocalyptic number.

645565334462 is a deficient number, since it is larger than the sum of its proper divisors (329850901234).

645565334462 is a wasteful number, since it uses less digits than its factorization.

645565334462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2356078002.

The product of its digits is 31104000, while the sum is 53.

The spelling of 645565334462 in words is "six hundred forty-five billion, five hundred sixty-five million, three hundred thirty-four thousand, four hundred sixty-two".