19996925580240 has 160 divisors (see below), whose sum is σ = 70868499363840. Its totient is φ = 4569290445312.

The previous prime is 19996925580227. The next prime is 19996925580293. The reversal of 19996925580240 is 4208552969991.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3486741 + ... + 7221579.

It is an arithmetic number, because the mean of its divisors is an integer number (442928121024).

Almost surely, 2^{19996925580240} is an apocalyptic number.

19996925580240 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 19996925580240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35434249681920).

19996925580240 is an abundant number, since it is smaller than the sum of its proper divisors (50871573783600).

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

19996925580240 is a wasteful number, since it uses less digits than its factorization.

19996925580240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3738049 (or 3738043 counting only the distinct ones).

The product of its (nonzero) digits is 125971200, while the sum is 69.

The spelling of 19996925580240 in words is "nineteen trillion, nine hundred ninety-six billion, nine hundred twenty-five million, five hundred eighty thousand, two hundred forty".