1646116120 has 192 divisors, whose sum is σ = 4439901600. Its totient is φ = 542822400.

The previous prime is 1646116111. The next prime is 1646116139. The reversal of 1646116120 is 216116461.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7188166 + ... + 7188394.

Almost surely, 2^1646116120 is an apocalyptic number.

1646116120 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 1646116120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2219950800).

1646116120 is an abundant number, since it is smaller than the sum of its proper divisors (2793785480).

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

1646116120 is a wasteful number, since it uses less digits than its factorization.

1646116120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330 (or 295 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 1646116120 is about 40572.3565990441. The cubic root of 1646116120 is about 1180.7378608363.

The spelling of 1646116120 in words is "one billion, six hundred forty-six million, one hundred sixteen thousand, one hundred twenty".