667051330 has 64 divisors (see below), whose sum is σ = 1375678080. Its totient is φ = 230630400.

The previous prime is 667051309. The next prime is 667051331. The reversal of 667051330 is 33150766.

It is a junction number, because it is equal to n+sod(n) for n = 667051292 and 667051301.

It is not an unprimeable number, because it can be changed into a prime (667051331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 212170 + ... + 215290.

It is an arithmetic number, because the mean of its divisors is an integer number (21494970).

Almost surely, 2^667051330 is an apocalyptic number.

667051330 is an abundant number, since it is smaller than the sum of its proper divisors (708626750).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

667051330 is a wasteful number, since it uses less digits than its factorization.

667051330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3235.

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 667051330 is about 25827.3368739404. The cubic root of 667051330 is about 873.7484496184.

The spelling of 667051330 in words is "six hundred sixty-seven million, fifty-one thousand, three hundred thirty".