660216902 has 16 divisors (see below), whose sum is σ = 1043255040. Its totient is φ = 312492168.

The previous prime is 660216881. The next prime is 660216941. The reversal of 660216902 is 209612066.

It is a super-3 number, since 3×660216902³ (a number of 27 digits) contains 333 as substring.

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, 48983 + ... + 60989.

It is an arithmetic number, because the mean of its divisors is an integer number (65203440).

Almost surely, 2^660216902 is an apocalyptic number.

660216902 is a deficient number, since it is larger than the sum of its proper divisors (383038138).

660216902 is a wasteful number, since it uses less digits than its factorization.

660216902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13475.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 660216902 is about 25694.6862600033. The cubic root of 660216902 is about 870.7541362611.

Adding to 660216902 its reverse (209612066), we get a palindrome (869828968).

The spelling of 660216902 in words is "six hundred sixty million, two hundred sixteen thousand, nine hundred two".