660340214 has 16 divisors (see below), whose sum is σ = 1055729376. Its totient is φ = 308688000.

The previous prime is 660340201. The next prime is 660340243. The reversal of 660340214 is 412043066.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59177 + ... + 69444.

It is an arithmetic number, because the mean of its divisors is an integer number (65983086).

Almost surely, 2^660340214 is an apocalyptic number.

660340214 is a deficient number, since it is larger than the sum of its proper divisors (395389162).

660340214 is a wasteful number, since it uses less digits than its factorization.

660340214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128791.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 660340214 is about 25697.0857102513. The cubic root of 660340214 is about 870.8083445823.

The spelling of 660340214 in words is "six hundred sixty million, three hundred forty thousand, two hundred fourteen".