62640066 has 8 divisors (see below), whose sum is σ = 125280144. Its totient is φ = 20880020.

The previous prime is 62640043. The next prime is 62640077. The reversal of 62640066 is 66004626.

It is a sphenic number, since it is the product of 3 distinct primes.

62640066 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5220000 + ... + 5220011.

It is an arithmetic number, because the mean of its divisors is an integer number (15660018).

Almost surely, 2^62640066 is an apocalyptic number.

62640066 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

62640066 is a wasteful number, since it uses less digits than its factorization.

62640066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10440016.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 62640066 is about 7914.5477445019. The cubic root of 62640066 is about 397.1464963646.

The spelling of 62640066 in words is "sixty-two million, six hundred forty thousand, sixty-six".