19933609660 has 24 divisors (see below), whose sum is σ = 42137809056. Its totient is φ = 7920638400.

The previous prime is 19933609651. The next prime is 19933609681. The reversal of 19933609660 is 6690633991.

It is a junction number, because it is equal to n+sod(n) for n = 19933609598 and 19933609607.

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, 3297247 + ... + 3303286.

It is an arithmetic number, because the mean of its divisors is an integer number (1755742044).

Almost surely, 2^19933609660 is an apocalyptic number.

19933609660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19933609660 is an abundant number, since it is smaller than the sum of its proper divisors (22204199396).

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

19933609660 is a wasteful number, since it uses less digits than its factorization.

19933609660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6600693 (or 6600691 counting only the distinct ones).

The product of its (nonzero) digits is 1417176, while the sum is 52.

The spelling of 19933609660 in words is "nineteen billion, nine hundred thirty-three million, six hundred nine thousand, six hundred sixty".