66766360 has 32 divisors (see below), whose sum is σ = 150741360. Its totient is φ = 26614656.

The previous prime is 66766339. The next prime is 66766369. The reversal of 66766360 is 6366766.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66766369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9562 + ... + 14998.

Almost surely, 2^66766360 is an apocalyptic number.

It is an amenable number.

66766360 is an abundant number, since it is smaller than the sum of its proper divisors (83975000).

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

66766360 is a wasteful number, since it uses less digits than its factorization.

66766360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5755 (or 5751 counting only the distinct ones).

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

The square root of 66766360 is about 8171.0684735841. The cubic root of 66766360 is about 405.6821507029.

The spelling of 66766360 in words is "sixty-six million, seven hundred sixty-six thousand, three hundred sixty".