66730526 has 8 divisors (see below), whose sum is σ = 101589960. Its totient is φ = 32867208.

The previous prime is 66730519. The next prime is 66730571. The reversal of 66730526 is 62503766.

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

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, 248861 + ... + 249128.

It is an arithmetic number, because the mean of its divisors is an integer number (12698745).

Almost surely, 2^66730526 is an apocalyptic number.

66730526 is a deficient number, since it is larger than the sum of its proper divisors (34859434).

66730526 is a wasteful number, since it uses less digits than its factorization.

66730526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498058.

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 66730526 is about 8168.8754428012. The cubic root of 66730526 is about 405.6095601762.

The spelling of 66730526 in words is "sixty-six million, seven hundred thirty thousand, five hundred twenty-six".