667512452 has 6 divisors (see below), whose sum is σ = 1168146798. Its totient is φ = 333756224.

The previous prime is 667512451. The next prime is 667512457. The reversal of 667512452 is 254215766.

667512452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 506070016 + 161442436 = 22496^2 + 12706^2 .

It is not an unprimeable number, because it can be changed into a prime (667512451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83439053 + ... + 83439060.

It is an arithmetic number, because the mean of its divisors is an integer number (194691133).

Almost surely, 2^667512452 is an apocalyptic number.

It is an amenable number.

667512452 is a deficient number, since it is larger than the sum of its proper divisors (500634346).

667512452 is a wasteful number, since it uses less digits than its factorization.

667512452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166878117 (or 166878115 counting only the distinct ones).

The product of its digits is 100800, while the sum is 38.

The square root of 667512452 is about 25836.2623457806. The cubic root of 667512452 is about 873.9497393890.

The spelling of 667512452 in words is "six hundred sixty-seven million, five hundred twelve thousand, four hundred fifty-two".