667072134 has 12 divisors (see below), whose sum is σ = 1445322996. Its totient is φ = 222357372.

The previous prime is 667072111. The next prime is 667072139. The reversal of 667072134 is 431270766.

667072134 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667072139) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18529764 + ... + 18529799.

It is an arithmetic number, because the mean of its divisors is an integer number (120443583).

Almost surely, 2^667072134 is an apocalyptic number.

667072134 is an abundant number, since it is smaller than the sum of its proper divisors (778250862).

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

667072134 is a wasteful number, since it uses less digits than its factorization.

667072134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37059571 (or 37059568 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 667072134 is about 25827.7396223518. The cubic root of 667072134 is about 873.7575330142.

The spelling of 667072134 in words is "six hundred sixty-seven million, seventy-two thousand, one hundred thirty-four".