664060265 has 8 divisors (see below), whose sum is σ = 869315328. Its totient is φ = 482952880.

The previous prime is 664060253. The next prime is 664060277. The reversal of 664060265 is 562060466.

It is an interprime number because it is at equal distance from previous prime (664060253) and next prime (664060277).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 664060265 - 2²² = 659865961 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6036857 + ... + 6036966.

It is an arithmetic number, because the mean of its divisors is an integer number (108664416).

Almost surely, 2^664060265 is an apocalyptic number.

It is an amenable number.

664060265 is a deficient number, since it is larger than the sum of its proper divisors (205255063).

664060265 is a wasteful number, since it uses less digits than its factorization.

664060265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12073839.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 664060265 is about 25769.3667947041. The cubic root of 664060265 is about 872.4405270858.

The spelling of 664060265 in words is "six hundred sixty-four million, sixty thousand, two hundred sixty-five".