660116510 has 16 divisors (see below), whose sum is σ = 1188554256. Its totient is φ = 263970048.

The previous prime is 660116497. The next prime is 660116539. The reversal of 660116510 is 15611066.

It is a self number, because there is not a number n which added to its sum of digits gives 660116510.

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, 37817 + ... + 52443.

It is an arithmetic number, because the mean of its divisors is an integer number (74284641).

Almost surely, 2^660116510 is an apocalyptic number.

660116510 is a deficient number, since it is larger than the sum of its proper divisors (528437746).

660116510 is a wasteful number, since it uses less digits than its factorization.

660116510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19147.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 660116510 is about 25692.7326300649. The cubic root of 660116510 is about 870.7099986551.

Adding to 660116510 its reverse (15611066), we get a palindrome (675727576).

The spelling of 660116510 in words is "six hundred sixty million, one hundred sixteen thousand, five hundred ten".