66078562 has 8 divisors (see below), whose sum is σ = 108128592. Its totient is φ = 30035700.

The previous prime is 66078557. The next prime is 66078629. The reversal of 66078562 is 26587066.

66078562 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

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 3 ways as a sum of consecutive naturals, for example, 1501764 + ... + 1501807.

It is an arithmetic number, because the mean of its divisors is an integer number (13516074).

Almost surely, 2^66078562 is an apocalyptic number.

66078562 is a deficient number, since it is larger than the sum of its proper divisors (42050030).

66078562 is a wasteful number, since it uses less digits than its factorization.

66078562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3003584.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 66078562 is about 8128.8721234868. The cubic root of 66078562 is about 404.2842859054.

The spelling of 66078562 in words is "sixty-six million, seventy-eight thousand, five hundred sixty-two".