664114145 has 16 divisors (see below), whose sum is σ = 817610112. Its totient is φ = 517574400.

The previous prime is 664114127. The next prime is 664114247. The reversal of 664114145 is 541411466.

It is not a de Polignac number, because 664114145 - 2¹⁴ = 664097761 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82364 + ... + 90066.

It is an arithmetic number, because the mean of its divisors is an integer number (51100632).

Almost surely, 2^664114145 is an apocalyptic number.

It is an amenable number.

664114145 is a deficient number, since it is larger than the sum of its proper divisors (153495967).

664114145 is a wasteful number, since it uses less digits than its factorization.

664114145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8152.

The product of its digits is 11520, while the sum is 32.

The square root of 664114145 is about 25770.4122008167. The cubic root of 664114145 is about 872.4641222456.

The spelling of 664114145 in words is "six hundred sixty-four million, one hundred fourteen thousand, one hundred forty-five".