16530470658 has 64 divisors (see below), whose sum is σ = 39730279680. Its totient is φ = 5064418944.

The previous prime is 16530470629. The next prime is 16530470683. The reversal of 16530470658 is 85607403561.

16530470658 is a `hidden beast` number, since 16 + 530 + 47 + 0 + 65 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 113035 + ... + 214097.

It is an arithmetic number, because the mean of its divisors is an integer number (620785620).

Almost surely, 2^16530470658 is an apocalyptic number.

16530470658 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16530470658, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19865139840).

16530470658 is an abundant number, since it is smaller than the sum of its proper divisors (23199809022).

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

16530470658 is a wasteful number, since it uses less digits than its factorization.

16530470658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101320 (or 101314 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The spelling of 16530470658 in words is "sixteen billion, five hundred thirty million, four hundred seventy thousand, six hundred fifty-eight".