645116562335 has 32 divisors (see below), whose sum is σ = 903652485120. Its totient is φ = 432907068672.

The previous prime is 645116562331. The next prime is 645116562353. The reversal of 645116562335 is 533265611546.

It is a cyclic number.

It is not a de Polignac number, because 645116562335 - 2² = 645116562331 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a self number, because there is not a number n which added to its sum of digits gives 645116562335.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (645116562331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22783907 + ... + 22812203.

It is an arithmetic number, because the mean of its divisors is an integer number (28239140160).

Almost surely, 2^645116562335 is an apocalyptic number.

645116562335 is a deficient number, since it is larger than the sum of its proper divisors (258535922785).

645116562335 is a wasteful number, since it uses less digits than its factorization.

645116562335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42215.

The product of its digits is 1944000, while the sum is 47.

The spelling of 645116562335 in words is "six hundred forty-five billion, one hundred sixteen million, five hundred sixty-two thousand, three hundred thirty-five".