66735470 has 8 divisors (see below), whose sum is σ = 120123864. Its totient is φ = 26694184.

The previous prime is 66735439. The next prime is 66735481. The reversal of 66735470 is 7453766.

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

It is a super-2 number, since 2×66735470² = 8907245912241800, which contains 22 as substring.

It is a congruent 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, 3336764 + ... + 3336783.

It is an arithmetic number, because the mean of its divisors is an integer number (15015483).

Almost surely, 2^66735470 is an apocalyptic number.

66735470 is a deficient number, since it is larger than the sum of its proper divisors (53388394).

66735470 is a wasteful number, since it uses less digits than its factorization.

66735470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6673554.

The product of its (nonzero) digits is 105840, while the sum is 38.

The square root of 66735470 is about 8169.1780492287. The cubic root of 66735470 is about 405.6195770019.

The spelling of 66735470 in words is "sixty-six million, seven hundred thirty-five thousand, four hundred seventy".