660225434 has 16 divisors (see below), whose sum is σ = 1080763776. Its totient is φ = 299992800.

The previous prime is 660225353. The next prime is 660225443. The reversal of 660225434 is 434522066.

It is a self number, because there is not a number n which added to its sum of digits gives 660225434.

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 7 ways as a sum of consecutive naturals, for example, 112214 + ... + 117950.

It is an arithmetic number, because the mean of its divisors is an integer number (67547736).

Almost surely, 2^660225434 is an apocalyptic number.

660225434 is a deficient number, since it is larger than the sum of its proper divisors (420538342).

660225434 is a wasteful number, since it uses less digits than its factorization.

660225434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10981.

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 660225434 is about 25694.8522860125. The cubic root of 660225434 is about 870.7578871709.

The spelling of 660225434 in words is "six hundred sixty million, two hundred twenty-five thousand, four hundred thirty-four".