19600006660 has 48 divisors (see below), whose sum is σ = 44427398400. Its totient is φ = 7220398464.

The previous prime is 19600006651. The next prime is 19600006709. The reversal of 19600006660 is 6660000691.

It is a happy number.

It is a super-2 number, since 2×19600006660² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28281 + ... + 199999.

It is an arithmetic number, because the mean of its divisors is an integer number (925570800).

Almost surely, 2^19600006660 is an apocalyptic number.

19600006660 is a gapful number since it is divisible by the number (10) 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 19600006660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22213699200).

19600006660 is an abundant number, since it is smaller than the sum of its proper divisors (24827391740).

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

19600006660 is a wasteful number, since it uses less digits than its factorization.

19600006660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172180 (or 172178 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 34.

The spelling of 19600006660 in words is "nineteen billion, six hundred million, six thousand, six hundred sixty".