1643116357814 has 8 divisors (see below), whose sum is σ = 2594394249240. Its totient is φ = 778318274736.

The previous prime is 1643116357739. The next prime is 1643116357853. The reversal of 1643116357814 is 4187536113461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 21619952039 + ... + 21619952114.

It is an arithmetic number, because the mean of its divisors is an integer number (324299281155).

Almost surely, 2^{1643116357814} is an apocalyptic number.

1643116357814 is a deficient number, since it is larger than the sum of its proper divisors (951277891426).

1643116357814 is a wasteful number, since it uses less digits than its factorization.

1643116357814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43239904174.

The product of its digits is 1451520, while the sum is 50.

The spelling of 1643116357814 in words is "one trillion, six hundred forty-three billion, one hundred sixteen million, three hundred fifty-seven thousand, eight hundred fourteen".