66735008 has 12 divisors (see below), whose sum is σ = 131384610. Its totient is φ = 33367488.

The previous prime is 66735007. The next prime is 66735059. The reversal of 66735008 is 80053766.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 40806544 + 25928464 = 6388^2 + 5092^2 .

It is a super-2 number, since 2×66735008² = 8907122585520128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (66735007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1042703 + ... + 1042766.

Almost surely, 2^66735008 is an apocalyptic number.

It is an amenable number.

66735008 is a deficient number, since it is larger than the sum of its proper divisors (64649602).

66735008 is a wasteful number, since it uses less digits than its factorization.

66735008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2085479 (or 2085471 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 66735008 is about 8169.1497721611. The cubic root of 66735008 is about 405.6186409846.

The spelling of 66735008 in words is "sixty-six million, seven hundred thirty-five thousand, eight".