1641591800068 has 12 divisors (see below), whose sum is σ = 3133947982032. Its totient is φ = 746178090920.

The previous prime is 1641591800047. The next prime is 1641591800071. The reversal of 1641591800068 is 8600081951461.

It is a super-3 number, since 3×1641591800068³ (a number of 38 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1641591799994 and 1641591800030.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18654452230 + ... + 18654452317.

It is an arithmetic number, because the mean of its divisors is an integer number (261162331836).

Almost surely, 2^{1641591800068} is an apocalyptic number.

It is an amenable number.

1641591800068 is a deficient number, since it is larger than the sum of its proper divisors (1492356181964).

1641591800068 is a wasteful number, since it uses less digits than its factorization.

1641591800068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37308904562 (or 37308904560 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 49.

The spelling of 1641591800068 in words is "one trillion, six hundred forty-one billion, five hundred ninety-one million, eight hundred thousand, sixty-eight".