1916054599680 has 288 divisors, whose sum is σ = 7151528573280. Its totient is φ = 471643914240.

The previous prime is 1916054599661. The next prime is 1916054599729. The reversal of 1916054599680 is 869954506191.

1916054599680 is a `hidden beast` number, since 1 + 9 + 1 + 6 + 0 + 545 + 9 + 9 + 6 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a super-2 number, since 2×1916054599680² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 398445 + ... + 1997715.

It is an arithmetic number, because the mean of its divisors is an integer number (24831696435).

Almost surely, 2^{1916054599680} is an apocalyptic number.

1916054599680 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 1916054599680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3575764286640).

1916054599680 is an abundant number, since it is smaller than the sum of its proper divisors (5235473973600).

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

1916054599680 is a wasteful number, since it uses less digits than its factorization.

1916054599680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1599317 (or 1599294 counting only the distinct ones).

The product of its (nonzero) digits is 20995200, while the sum is 63.

The spelling of 1916054599680 in words is "one trillion, nine hundred sixteen billion, fifty-four million, five hundred ninety-nine thousand, six hundred eighty".