66682734 has 8 divisors (see below), whose sum is σ = 133365480. Its totient is φ = 22227576.

The previous prime is 66682717. The next prime is 66682741. The reversal of 66682734 is 43728666.

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

66682734 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5556889 + ... + 5556900.

It is an arithmetic number, because the mean of its divisors is an integer number (16670685).

Almost surely, 2^66682734 is an apocalyptic number.

66682734 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.

66682734 is a wasteful number, since it uses less digits than its factorization.

66682734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11113794.

The product of its digits is 290304, while the sum is 42.

The square root of 66682734 is about 8165.9496692057. The cubic root of 66682734 is about 405.5127053439.

The spelling of 66682734 in words is "sixty-six million, six hundred eighty-two thousand, seven hundred thirty-four".