654164065 has 4 divisors (see below), whose sum is σ = 784996884. Its totient is φ = 523331248.

The previous prime is 654164059. The next prime is 654164191. The reversal of 654164065 is 560461456.

654164065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 153165376 + 500998689 = 12376^2 + 22383^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-654164065 is a prime.

It is a Duffinian 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, 65416402 + ... + 65416411.

It is an arithmetic number, because the mean of its divisors is an integer number (196249221).

Almost surely, 2^654164065 is an apocalyptic number.

It is an amenable number.

654164065 is a deficient number, since it is larger than the sum of its proper divisors (130832819).

654164065 is a wasteful number, since it uses less digits than its factorization.

654164065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130832818.

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 654164065 is about 25576.6312285258. The cubic root of 654164065 is about 868.0849518141.

The spelling of 654164065 in words is "six hundred fifty-four million, one hundred sixty-four thousand, sixty-five".