1641602930688 has 864 divisors, whose sum is σ = 5818515655680. Its totient is φ = 453093212160.

The previous prime is 1641602930623. The next prime is 1641602930699. The reversal of 1641602930688 is 8860392061461.

It is a tau number, because it is divible by the number of its divisors (864).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2915813095 + ... + 2915813657.

It is an arithmetic number, because the mean of its divisors is an integer number (6734393120).

Almost surely, 2^{1641602930688} is an apocalyptic number.

1641602930688 is a gapful number since it is divisible by the number (18) 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 1641602930688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2909257827840).

1641602930688 is an abundant number, since it is smaller than the sum of its proper divisors (4176912724992).

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

1641602930688 is an frugal number, since it uses more digits than its factorization.

1641602930688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647 (or 606 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The spelling of 1641602930688 in words is "one trillion, six hundred forty-one billion, six hundred two million, nine hundred thirty thousand, six hundred eighty-eight".