66456652 has 6 divisors (see below), whose sum is σ = 116299148. Its totient is φ = 33228324.

The previous prime is 66456619. The next prime is 66456659. The reversal of 66456652 is 25665466.

66456652 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (66456659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8307078 + ... + 8307085.

Almost surely, 2^66456652 is an apocalyptic number.

It is an amenable number.

66456652 is a deficient number, since it is larger than the sum of its proper divisors (49842496).

66456652 is a wasteful number, since it uses less digits than its factorization.

66456652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16614167 (or 16614165 counting only the distinct ones).

The product of its digits is 259200, while the sum is 40.

The square root of 66456652 is about 8152.0949454726. The cubic root of 66456652 is about 405.0539012749.

The spelling of 66456652 in words is "sixty-six million, four hundred fifty-six thousand, six hundred fifty-two".