660116532 has 24 divisors (see below), whose sum is σ = 1540699776. Its totient is φ = 219977728.

The previous prime is 660116497. The next prime is 660116539. The reversal of 660116532 is 235611066.

It is a self number, because there is not a number n which added to its sum of digits gives 660116532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660116539) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 64948 + ... + 74420.

It is an arithmetic number, because the mean of its divisors is an integer number (64195824).

Almost surely, 2^660116532 is an apocalyptic number.

It is an amenable number.

660116532 is an abundant number, since it is smaller than the sum of its proper divisors (880583244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

660116532 is a wasteful number, since it uses less digits than its factorization.

660116532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15287 (or 15285 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 660116532 is about 25692.7330582015. The cubic root of 660116532 is about 870.7100083279.

Adding to 660116532 its reverse (235611066), we get a palindrome (895727598).

The spelling of 660116532 in words is "six hundred sixty million, one hundred sixteen thousand, five hundred thirty-two".