67666360 has 16 divisors (see below), whose sum is σ = 152249400. Its totient is φ = 27066528.

The previous prime is 67666351. The next prime is 67666363. The reversal of 67666360 is 6366676.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 1691659 = 67666360 / (6 + 7 + 6 + 6 + 6 + 3 + 6 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67666363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 845790 + ... + 845869.

Almost surely, 2^67666360 is an apocalyptic number.

It is an amenable number.

67666360 is an abundant number, since it is smaller than the sum of its proper divisors (84583040).

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

67666360 is a wasteful number, since it uses less digits than its factorization.

67666360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691670 (or 1691666 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 40.

The square root of 67666360 is about 8225.9564793403. The cubic root of 67666360 is about 407.4968647431.

The spelling of 67666360 in words is "sixty-seven million, six hundred sixty-six thousand, three hundred sixty".