66667104 has 192 divisors, whose sum is σ = 226759680. Its totient is φ = 18662400.

The previous prime is 66667093. The next prime is 66667121. The reversal of 66667104 is 40176666.

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 31 ways as a sum of consecutive naturals, for example, 441429 + ... + 441579.

It is an arithmetic number, because the mean of its divisors is an integer number (1181040).

Almost surely, 2^66667104 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 66667104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113379840).

66667104 is an abundant number, since it is smaller than the sum of its proper divisors (160092576).

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

66667104 is a wasteful number, since it uses less digits than its factorization.

66667104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 236 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 66667104 is about 8164.9925903212. The cubic root of 66667104 is about 405.4810196862.

The spelling of 66667104 in words is "sixty-six million, six hundred sixty-seven thousand, one hundred four".