66530036 has 6 divisors (see below), whose sum is σ = 116427570. Its totient is φ = 33265016.

The previous prime is 66530029. The next prime is 66530041. The reversal of 66530036 is 63003566.

It can be written as a sum of positive squares in only one way, i.e., 41088100 + 25441936 = 6410^2 + 5044^2 .

It is a super-3 number, since 3×66530036³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 66529990 and 66530008.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8316251 + ... + 8316258.

It is an arithmetic number, because the mean of its divisors is an integer number (19404595).

Almost surely, 2^66530036 is an apocalyptic number.

It is an amenable number.

66530036 is a deficient number, since it is larger than the sum of its proper divisors (49897534).

66530036 is a wasteful number, since it uses less digits than its factorization.

66530036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16632513 (or 16632511 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 29.

The square root of 66530036 is about 8156.5946325657. The cubic root of 66530036 is about 405.2029384810.

The spelling of 66530036 in words is "sixty-six million, five hundred thirty thousand, thirty-six".