66748034 has 4 divisors (see below), whose sum is σ = 100122054. Its totient is φ = 33374016.

The previous prime is 66747979. The next prime is 66748067. The reversal of 66748034 is 43084766.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 38626225 + 28121809 = 6215^2 + 5303^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16687007 + ... + 16687010.

Almost surely, 2^66748034 is an apocalyptic number.

66748034 is a deficient number, since it is larger than the sum of its proper divisors (33374020).

66748034 is a wasteful number, since it uses less digits than its factorization.

66748034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33374019.

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 66748034 is about 8169.9470010521. The cubic root of 66748034 is about 405.6450301559.

The spelling of 66748034 in words is "sixty-six million, seven hundred forty-eight thousand, thirty-four".