66652514 has 4 divisors (see below), whose sum is σ = 99978774. Its totient is φ = 33326256.

The previous prime is 66652501. The next prime is 66652517. The reversal of 66652514 is 41525666.

66652514 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 57501889 + 9150625 = 7583^2 + 3025^2 .

It is not an unprimeable number, because it can be changed into a prime (66652517) 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, 16663127 + ... + 16663130.

Almost surely, 2^66652514 is an apocalyptic number.

66652514 is a deficient number, since it is larger than the sum of its proper divisors (33326260).

66652514 is a wasteful number, since it uses less digits than its factorization.

66652514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33326259.

The product of its digits is 43200, while the sum is 35.

The square root of 66652514 is about 8164.0990929802. The cubic root of 66652514 is about 405.4514378818.

The spelling of 66652514 in words is "sixty-six million, six hundred fifty-two thousand, five hundred fourteen".