66032642 has 32 divisors (see below), whose sum is σ = 111004992. Its totient is φ = 29260224.

The previous prime is 66032633. The next prime is 66032663. The reversal of 66032642 is 24623066.

66032642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 79433 + ... + 80259.

It is an arithmetic number, because the mean of its divisors is an integer number (3468906).

Almost surely, 2^66032642 is an apocalyptic number.

66032642 is a deficient number, since it is larger than the sum of its proper divisors (44972350).

66032642 is a wasteful number, since it uses less digits than its factorization.

66032642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 66032642 is about 8126.0471325239. The cubic root of 66032642 is about 404.1906143933.

The spelling of 66032642 in words is "sixty-six million, thirty-two thousand, six hundred forty-two".