66074698 has 8 divisors (see below), whose sum is σ = 101529540. Its totient is φ = 32231520.

The previous prime is 66074693. The next prime is 66074707. The reversal of 66074698 is 89647066.

It can be written as a sum of positive squares in 2 ways, for example, as 66048129 + 26569 = 8127^2 + 163^2 .

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

It is not an unprimeable number, because it can be changed into a prime (66074693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 402813 + ... + 402976.

Almost surely, 2^66074698 is an apocalyptic number.

66074698 is a deficient number, since it is larger than the sum of its proper divisors (35454842).

66074698 is a wasteful number, since it uses less digits than its factorization.

66074698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805832.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 66074698 is about 8128.6344486636. The cubic root of 66074698 is about 404.2764054629.

The spelling of 66074698 in words is "sixty-six million, seventy-four thousand, six hundred ninety-eight".