667147104 has 180 divisors, whose sum is σ = 2125993716. Its totient is φ = 205141248.

The previous prime is 667147097. The next prime is 667147123. The reversal of 667147104 is 401741766.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 437287 + ... + 438809.

Almost surely, 2^667147104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 667147104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1062996858).

667147104 is an abundant number, since it is smaller than the sum of its proper divisors (1458846612).

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

667147104 is a wasteful number, since it uses less digits than its factorization.

667147104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1571 (or 1541 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 667147104 is about 25829.1909280953. The cubic root of 667147104 is about 873.7902646810.

The spelling of 667147104 in words is "six hundred sixty-seven million, one hundred forty-seven thousand, one hundred four".