660259202 has 4 divisors (see below), whose sum is σ = 990388806. Its totient is φ = 330129600.

The previous prime is 660259163. The next prime is 660259217. The reversal of 660259202 is 202952066.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 202952066 = 2 ⋅101476033.

It can be written as a sum of positive squares in only one way, i.e., 428945521 + 231313681 = 20711^2 + 15209^2 .

It is a super-5 number, since 5×660259202⁵ (a number of 45 digits) contains 55555 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165064799 + ... + 165064802.

Almost surely, 2^660259202 is an apocalyptic number.

660259202 is a deficient number, since it is larger than the sum of its proper divisors (330129604).

660259202 is a wasteful number, since it uses less digits than its factorization.

660259202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330129603.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 660259202 is about 25695.5093742078. The cubic root of 660259202 is about 870.7727322272.

The spelling of 660259202 in words is "six hundred sixty million, two hundred fifty-nine thousand, two hundred two".