66582434 has 16 divisors (see below), whose sum is σ = 104569920. Its totient is φ = 31753680.

The previous prime is 66582433. The next prime is 66582443. The reversal of 66582434 is 43428566.

It is not an unprimeable number, because it can be changed into a prime (66582431) 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 7 ways as a sum of consecutive naturals, for example, 2102 + ... + 11729.

It is an arithmetic number, because the mean of its divisors is an integer number (6535620).

Almost surely, 2^66582434 is an apocalyptic number.

66582434 is a deficient number, since it is larger than the sum of its proper divisors (37987486).

66582434 is a wasteful number, since it uses less digits than its factorization.

66582434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13945.

The product of its digits is 138240, while the sum is 38.

The square root of 66582434 is about 8159.8060025959. The cubic root of 66582434 is about 405.3092876998.

The spelling of 66582434 in words is "sixty-six million, five hundred eighty-two thousand, four hundred thirty-four".