19956025152 has 168 divisors, whose sum is σ = 65434439616. Its totient is φ = 5696262144.

The previous prime is 19956025139. The next prime is 19956025153. The reversal of 19956025152 is 25152065991.

19956025152 is a `hidden beast` number, since 19 + 9 + 560 + 25 + 1 + 52 = 666.

It is a tau number, because it is divible by the number of its divisors (168).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 19956025098 and 19956025107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19956025153) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6260103 + ... + 6263289.

It is an arithmetic number, because the mean of its divisors is an integer number (389490712).

Almost surely, 2^19956025152 is an apocalyptic number.

19956025152 is a gapful number since it is divisible by the number (12) 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 19956025152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32717219808).

19956025152 is an abundant number, since it is smaller than the sum of its proper divisors (45478414464).

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

19956025152 is a wasteful number, since it uses less digits than its factorization.

19956025152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4765 (or 4752 counting only the distinct ones).

The product of its (nonzero) digits is 243000, while the sum is 45.

The spelling of 19956025152 in words is "nineteen billion, nine hundred fifty-six million, twenty-five thousand, one hundred fifty-two".