66282638 has 16 divisors (see below), whose sum is σ = 101122560. Its totient is φ = 32579256.

The previous prime is 66282607. The next prime is 66282641. The reversal of 66282638 is 83628266.

It is a junction number, because it is equal to n+sod(n) for n = 66282595 and 66282604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36803 + ... + 38561.

It is an arithmetic number, because the mean of its divisors is an integer number (6320160).

Almost surely, 2^66282638 is an apocalyptic number.

66282638 is a deficient number, since it is larger than the sum of its proper divisors (34839922).

66282638 is a wasteful number, since it uses less digits than its factorization.

66282638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2071.

The product of its digits is 165888, while the sum is 41.

The square root of 66282638 is about 8141.4149875805. The cubic root of 66282638 is about 404.7000532761.

The spelling of 66282638 in words is "sixty-six million, two hundred eighty-two thousand, six hundred thirty-eight".