19933141680 has 240 divisors, whose sum is σ = 70610049120. Its totient is φ = 5025411072.

The previous prime is 19933141651. The next prime is 19933141703. The reversal of 19933141680 is 8614133991.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8384652 + ... + 8387028.

It is an arithmetic number, because the mean of its divisors is an integer number (294208538).

Almost surely, 2^19933141680 is an apocalyptic number.

19933141680 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 19933141680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35305024560).

19933141680 is an abundant number, since it is smaller than the sum of its proper divisors (50676907440).

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

19933141680 is a wasteful number, since it uses less digits than its factorization.

19933141680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3028 (or 3019 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The spelling of 19933141680 in words is "nineteen billion, nine hundred thirty-three million, one hundred forty-one thousand, six hundred eighty".