16119663840 has 576 divisors, whose sum is σ = 70082288640. Its totient is φ = 3284582400.

The previous prime is 16119663757. The next prime is 16119663841. The reversal of 16119663840 is 4836691161.

16119663840 is a `hidden beast` number, since 1 + 6 + 1 + 1 + 9 + 6 + 638 + 4 + 0 = 666.

It is a super-3 number, since 3×16119663840³ (a number of 32 digits) contains 333 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16119663841) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3253365 + ... + 3258315.

It is an arithmetic number, because the mean of its divisors is an integer number (121670640).

Almost surely, 2^16119663840 is an apocalyptic number.

16119663840 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 16119663840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35041144320).

16119663840 is an abundant number, since it is smaller than the sum of its proper divisors (53962624800).

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

16119663840 is a wasteful number, since it uses less digits than its factorization.

16119663840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5015 (or 5004 counting only the distinct ones).

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

The spelling of 16119663840 in words is "sixteen billion, one hundred nineteen million, six hundred sixty-three thousand, eight hundred forty".