664058745 has 24 divisors (see below), whose sum is σ = 1315469376. Its totient is φ = 303569568.

The previous prime is 664058711. The next prime is 664058771. The reversal of 664058745 is 547850466.

664058745 is a `hidden beast` number, since 6 + 64 + 0 + 587 + 4 + 5 = 666.

It is not a de Polignac number, because 664058745 - 2¹³ = 664050553 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 664058745.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1053747 + ... + 1054376.

It is an arithmetic number, because the mean of its divisors is an integer number (54811224).

Almost surely, 2^664058745 is an apocalyptic number.

It is an amenable number.

664058745 is a deficient number, since it is larger than the sum of its proper divisors (651410631).

664058745 is a wasteful number, since it uses less digits than its factorization.

664058745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2108141 (or 2108138 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The square root of 664058745 is about 25769.3373023056. The cubic root of 664058745 is about 872.4398614280.

The spelling of 664058745 in words is "six hundred sixty-four million, fifty-eight thousand, seven hundred forty-five".