660233674 has 4 divisors (see below), whose sum is σ = 990350514. Its totient is φ = 330116836.

The previous prime is 660233621. The next prime is 660233677. The reversal of 660233674 is 476332066.

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., 574800625 + 85433049 = 23975^2 + 9243^2 .

It is not an unprimeable number, because it can be changed into a prime (660233677) by changing a digit.

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 as a sum of consecutive naturals, namely, 165058417 + ... + 165058420.

Almost surely, 2^660233674 is an apocalyptic number.

660233674 is a deficient number, since it is larger than the sum of its proper divisors (330116840).

660233674 is a wasteful number, since it uses less digits than its factorization.

660233674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330116839.

The product of its (nonzero) digits is 108864, while the sum is 37.

The square root of 660233674 is about 25695.0126289130. The cubic root of 660233674 is about 870.7615096786.

The spelling of 660233674 in words is "six hundred sixty million, two hundred thirty-three thousand, six hundred seventy-four".