6665152505 has 24 divisors (see below), whose sum is σ = 9094566600. Its totient is φ = 4680220160.

The previous prime is 6665152499. The next prime is 6665152511. The reversal of 6665152505 is 5052515666.

It is an interprime number because it is at equal distance from previous prime (6665152499) and next prime (6665152511).

It can be written as a sum of positive squares in 4 ways, for example, as 992502016 + 5672650489 = 31504^2 + 75317^2 .

It is not a de Polignac number, because 6665152505 - 2³⁰ = 5591410681 is a prime.

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, 172400 + ... + 207489.

It is an arithmetic number, because the mean of its divisors is an integer number (378940275).

Almost surely, 2^6665152505 is an apocalyptic number.

It is an amenable number.

6665152505 is a deficient number, since it is larger than the sum of its proper divisors (2429414095).

6665152505 is a wasteful number, since it uses less digits than its factorization.

6665152505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379945 (or 379934 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 41.

The square root of 6665152505 is about 81640.3852575427. The cubic root of 6665152505 is about 1881.9295589050.

The spelling of 6665152505 in words is "six billion, six hundred sixty-five million, one hundred fifty-two thousand, five hundred five".