516144660 has 48 divisors (see below), whose sum is σ = 1448615616. Its totient is φ = 137313792.

The previous prime is 516144659. The next prime is 516144661. The reversal of 516144660 is 66441615.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (516144659) and next prime (516144661).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516144661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16047 + ... + 35913.

It is an arithmetic number, because the mean of its divisors is an integer number (30179492).

Almost surely, 2^516144660 is an apocalyptic number.

It is an amenable number.

516144660 is an abundant number, since it is smaller than the sum of its proper divisors (932470956).

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

516144660 is a wasteful number, since it uses less digits than its factorization.

516144660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20312 (or 20310 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 516144660 is about 22718.8173107669. The cubic root of 516144660 is about 802.1528782802.

The spelling of 516144660 in words is "five hundred sixteen million, one hundred forty-four thousand, six hundred sixty".