666134152 has 16 divisors (see below), whose sum is σ = 1269477900. Its totient is φ = 327606720.

The previous prime is 666134111. The next prime is 666134153. The reversal of 666134152 is 251431666.

It can be written as a sum of positive squares in 2 ways, for example, as 586317796 + 79816356 = 24214^2 + 8934^2 .

It is not an unprimeable number, because it can be changed into a prime (666134153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 682027 + ... + 683002.

Almost surely, 2^666134152 is an apocalyptic number.

It is an amenable number.

666134152 is a deficient number, since it is larger than the sum of its proper divisors (603343748).

666134152 is a wasteful number, since it uses less digits than its factorization.

666134152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365096 (or 1365092 counting only the distinct ones).

The product of its digits is 25920, while the sum is 34.

The square root of 666134152 is about 25809.5748124606. The cubic root of 666134152 is about 873.3478055731.

The spelling of 666134152 in words is "six hundred sixty-six million, one hundred thirty-four thousand, one hundred fifty-two".