1643332107355 has 16 divisors (see below), whose sum is σ = 2102063731200. Its totient is φ = 1229707271520.

The previous prime is 1643332107343. The next prime is 1643332107383. The reversal of 1643332107355 is 5537012333461.

It is a happy number.

It is not a de Polignac number, because 1643332107355 - 2²⁵ = 1643298552923 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109474981 + ... + 109489990.

It is an arithmetic number, because the mean of its divisors is an integer number (131378983200).

Almost surely, 2^{1643332107355} is an apocalyptic number.

1643332107355 is a deficient number, since it is larger than the sum of its proper divisors (458731623845).

1643332107355 is a wasteful number, since it uses less digits than its factorization.

1643332107355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218965074.

The product of its (nonzero) digits is 680400, while the sum is 43.

The spelling of 1643332107355 in words is "one trillion, six hundred forty-three billion, three hundred thirty-two million, one hundred seven thousand, three hundred fifty-five".