16619890728960 has 1120 divisors, whose sum is σ = 61647188071392. Its totient is φ = 4280706662400.

The previous prime is 16619890728919. The next prime is 16619890729007. The reversal of 16619890728960 is 6982709891661.

16619890728960 is a `hidden beast` number, since 16 + 6 + 198 + 90 + 7 + 289 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 13838376360 + ... + 13838377560.

Almost surely, 2^{16619890728960} is an apocalyptic number.

16619890728960 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 16619890728960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30823594035696).

16619890728960 is an abundant number, since it is smaller than the sum of its proper divisors (45027297342432).

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

16619890728960 is an equidigital number, since it uses as much as digits as its factorization.

16619890728960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1384 (or 1351 counting only the distinct ones).

The product of its (nonzero) digits is 141087744, while the sum is 72.

The spelling of 16619890728960 in words is "sixteen trillion, six hundred nineteen billion, eight hundred ninety million, seven hundred twenty-eight thousand, nine hundred sixty".