19650147606 has 24 divisors (see below), whose sum is σ = 43378629840. Its totient is φ = 6426463056.

The previous prime is 19650147593. The next prime is 19650147641. The reversal of 19650147606 is 60674105691.

It is a super-2 number, since 2×19650147606² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10297866 + ... + 10299773.

It is an arithmetic number, because the mean of its divisors is an integer number (1807442910).

Almost surely, 2^19650147606 is an apocalyptic number.

19650147606 is an abundant number, since it is smaller than the sum of its proper divisors (23728482234).

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

19650147606 is a wasteful number, since it uses less digits than its factorization.

19650147606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20597700 (or 20597697 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 19650147606 in words is "nineteen billion, six hundred fifty million, one hundred forty-seven thousand, six hundred six".