666315273 has 16 divisors (see below), whose sum is σ = 957559680. Its totient is φ = 409697664.

The previous prime is 666315269. The next prime is 666315283. The reversal of 666315273 is 372513666.

666315273 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 666315273 - 2² = 666315269 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (666315253) 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, 44965 + ... + 57917.

It is an arithmetic number, because the mean of its divisors is an integer number (59847480).

Almost surely, 2^666315273 is an apocalyptic number.

It is an amenable number.

666315273 is a deficient number, since it is larger than the sum of its proper divisors (291244407).

666315273 is a wasteful number, since it uses less digits than its factorization.

666315273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14288.

The product of its digits is 136080, while the sum is 39.

The square root of 666315273 is about 25813.0833687105. The cubic root of 666315273 is about 873.4269524402.

The spelling of 666315273 in words is "six hundred sixty-six million, three hundred fifteen thousand, two hundred seventy-three".