1916662404020 has 96 divisors (see below), whose sum is σ = 4960542048000. Its totient is φ = 605770804224.

The previous prime is 1916662403897. The next prime is 1916662404029. The reversal of 1916662404020 is 204042666191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1916662404029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 632456 + ... + 2057504.

It is an arithmetic number, because the mean of its divisors is an integer number (51672313000).

Almost surely, 2^{1916662404020} is an apocalyptic number.

1916662404020 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 1916662404020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2480271024000).

1916662404020 is an abundant number, since it is smaller than the sum of its proper divisors (3043879643980).

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

1916662404020 is a wasteful number, since it uses less digits than its factorization.

1916662404020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1425817 (or 1425815 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The spelling of 1916662404020 in words is "one trillion, nine hundred sixteen billion, six hundred sixty-two million, four hundred four thousand, twenty".