19964206080 has 1320 divisors, whose sum is σ = 92044452192. Its totient is φ = 4029087744.

The previous prime is 19964206079. The next prime is 19964206123. The reversal of 19964206080 is 8060246991.

It is a happy number.

19964206080 is a `hidden beast` number, since 1 + 9 + 96 + 420 + 60 + 80 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 868008949 + ... + 868008971.

Almost surely, 2^19964206080 is an apocalyptic number.

19964206080 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 19964206080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46022226096).

19964206080 is an abundant number, since it is smaller than the sum of its proper divisors (72080246112).

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

19964206080 is a wasteful number, since it uses less digits than its factorization.

19964206080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103 (or 53 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The spelling of 19964206080 in words is "nineteen billion, nine hundred sixty-four million, two hundred six thousand, eighty".