66513627 has 12 divisors (see below), whose sum is σ = 97233864. Its totient is φ = 43807680.

The previous prime is 66513619. The next prime is 66513641. The reversal of 66513627 is 72631566.

It is not a de Polignac number, because 66513627 - 2³ = 66513619 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 66513591 and 66513600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66513127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43774 + ... + 45267.

It is an arithmetic number, because the mean of its divisors is an integer number (8102822).

Almost surely, 2^66513627 is an apocalyptic number.

66513627 is a deficient number, since it is larger than the sum of its proper divisors (30720237).

66513627 is a wasteful number, since it uses less digits than its factorization.

66513627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89130 (or 89127 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 66513627 is about 8155.5886973290. The cubic root of 66513627 is about 405.1696225928.

The spelling of 66513627 in words is "sixty-six million, five hundred thirteen thousand, six hundred twenty-seven".