665141295 has 32 divisors (see below), whose sum is σ = 1309819392. Its totient is φ = 280674432.

The previous prime is 665141287. The next prime is 665141297. The reversal of 665141295 is 592141566.

It is not a de Polignac number, because 665141295 - 2³ = 665141287 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665141297) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 242277 + ... + 245006.

It is an arithmetic number, because the mean of its divisors is an integer number (40931856).

Almost surely, 2^665141295 is an apocalyptic number.

665141295 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

665141295 is a deficient number, since it is larger than the sum of its proper divisors (644678097).

665141295 is a wasteful number, since it uses less digits than its factorization.

665141295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487311.

The product of its digits is 64800, while the sum is 39.

The square root of 665141295 is about 25790.3333634911. Note that the first 4 decimals coincide. The cubic root of 665141295 is about 872.9136884919.

The spelling of 665141295 in words is "six hundred sixty-five million, one hundred forty-one thousand, two hundred ninety-five".