664375147 has 16 divisors (see below), whose sum is σ = 744681600. Its totient is φ = 589023360.

The previous prime is 664375141. The next prime is 664375157. The reversal of 664375147 is 741573466.

It is a cyclic number.

It is not a de Polignac number, because 664375147 - 2¹⁵ = 664342379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (664375141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52072 + ... + 63562.

It is an arithmetic number, because the mean of its divisors is an integer number (46542600).

Almost surely, 2^664375147 is an apocalyptic number.

664375147 is a deficient number, since it is larger than the sum of its proper divisors (80306453).

664375147 is a wasteful number, since it uses less digits than its factorization.

664375147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11706.

The product of its digits is 423360, while the sum is 43.

The square root of 664375147 is about 25775.4756891119. The cubic root of 664375147 is about 872.5784023273.

The spelling of 664375147 in words is "six hundred sixty-four million, three hundred seventy-five thousand, one hundred forty-seven".