66775354 has 8 divisors (see below), whose sum is σ = 106055028. Its totient is φ = 31423680.

The previous prime is 66775339. The next prime is 66775369. The reversal of 66775354 is 45357766.

It is an interprime number because it is at equal distance from previous prime (66775339) and next prime (66775369).

It can be written as a sum of positive squares in 2 ways, for example, as 54420129 + 12355225 = 7377^2 + 3515^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 66775354.

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, 981957 + ... + 982024.

Almost surely, 2^66775354 is an apocalyptic number.

66775354 is a deficient number, since it is larger than the sum of its proper divisors (39279674).

66775354 is a wasteful number, since it uses less digits than its factorization.

66775354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1964000.

The product of its digits is 529200, while the sum is 43.

The square root of 66775354 is about 8171.6188114718. The cubic root of 66775354 is about 405.7003661707.

The spelling of 66775354 in words is "sixty-six million, seven hundred seventy-five thousand, three hundred fifty-four".