66933078 has 8 divisors (see below), whose sum is σ = 133866168. Its totient is φ = 22311024.

The previous prime is 66933077. The next prime is 66933103. The reversal of 66933078 is 87033966.

It is a sphenic number, since it is the product of 3 distinct primes.

66933078 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66933071) 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, 5577751 + ... + 5577762.

It is an arithmetic number, because the mean of its divisors is an integer number (16733271).

Almost surely, 2^66933078 is an apocalyptic number.

66933078 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

66933078 is a wasteful number, since it uses less digits than its factorization.

66933078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11155518.

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 66933078 is about 8181.2638387965. The cubic root of 66933078 is about 406.0195376719.

The spelling of 66933078 in words is "sixty-six million, nine hundred thirty-three thousand, seventy-eight".