666054315 has 24 divisors (see below), whose sum is σ = 1158775488. Its totient is φ = 353911680.

The previous prime is 666054299. The next prime is 666054331. The reversal of 666054315 is 513450666.

It is an interprime number because it is at equal distance from previous prime (666054299) and next prime (666054331).

It is not a de Polignac number, because 666054315 - 2⁴ = 666054299 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 666054315.

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, 15114 + ... + 39503.

It is an arithmetic number, because the mean of its divisors is an integer number (48282312).

Almost surely, 2^666054315 is an apocalyptic number.

666054315 is a deficient number, since it is larger than the sum of its proper divisors (492721173).

666054315 is a wasteful number, since it uses less digits than its factorization.

666054315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54899 (or 54896 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 666054315 is about 25808.0281114230. The cubic root of 666054315 is about 873.3129135751.

The spelling of 666054315 in words is "six hundred sixty-six million, fifty-four thousand, three hundred fifteen".