518330664 has 224 divisors, whose sum is σ = 1561328640. Its totient is φ = 160963200.

The previous prime is 518330653. The next prime is 518330689. The reversal of 518330664 is 466033815.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 8497194 + ... + 8497254.

Almost surely, 2^518330664 is an apocalyptic number.

518330664 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 518330664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (780664320).

518330664 is an abundant number, since it is smaller than the sum of its proper divisors (1042997976).

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

518330664 is a wasteful number, since it uses less digits than its factorization.

518330664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 518330664 is about 22766.8764656024. The cubic root of 518330664 is about 803.2837238389.

The spelling of 518330664 in words is "five hundred eighteen million, three hundred thirty thousand, six hundred sixty-four".