667117900 has 36 divisors (see below), whose sum is σ = 1448775328. Its totient is φ = 266639040.

The previous prime is 667117889. The next prime is 667117903. The reversal of 667117900 is 9711766.

667117900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 667117900.

It is not an unprimeable number, because it can be changed into a prime (667117903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 227242 + ... + 230158.

Almost surely, 2^667117900 is an apocalyptic number.

It is an amenable number.

667117900 is an abundant number, since it is smaller than the sum of its proper divisors (781657428).

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

667117900 is a wasteful number, since it uses less digits than its factorization.

667117900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5218 (or 5211 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 37.

The square root of 667117900 is about 25828.6255925475. The cubic root of 667117900 is about 873.7775145978. Note that the first 3 decimals are identical.

The spelling of 667117900 in words is "six hundred sixty-seven million, one hundred seventeen thousand, nine hundred".