19660830516 has 24 divisors (see below), whose sum is σ = 50972523840. Its totient is φ = 6553610136.

The previous prime is 19660830481. The next prime is 19660830547. The reversal of 19660830516 is 61503806691.

19660830516 is a `hidden beast` number, since 1 + 9 + 6 + 608 + 30 + 5 + 1 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91022256 + ... + 91022471.

It is an arithmetic number, because the mean of its divisors is an integer number (2123855160).

Almost surely, 2^19660830516 is an apocalyptic number.

It is an amenable number.

19660830516 is an abundant number, since it is smaller than the sum of its proper divisors (31311693324).

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

19660830516 is a wasteful number, since it uses less digits than its factorization.

19660830516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182044740 (or 182044732 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 19660830516 in words is "nineteen billion, six hundred sixty million, eight hundred thirty thousand, five hundred sixteen".