643116103315401 has 8 divisors (see below), whose sum is σ = 907928616445344. Its totient is φ = 403523829531200.

The previous prime is 643116103315363. The next prime is 643116103315453. The reversal of 643116103315401 is 104513301611346.

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

It is a cyclic number.

It is not a de Polignac number, because 643116103315401 - 2¹⁴ = 643116103299017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 643116103315401.

It is not an unprimeable number, because it can be changed into a prime (643116103315481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6305059836375 + ... + 6305059836476.

It is an arithmetic number, because the mean of its divisors is an integer number (113491077055668).

Almost surely, 2^{643116103315401} is an apocalyptic number.

It is an amenable number.

643116103315401 is a deficient number, since it is larger than the sum of its proper divisors (264812513129943).

643116103315401 is a wasteful number, since it uses less digits than its factorization.

643116103315401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12610119672871.

The product of its (nonzero) digits is 77760, while the sum is 39.

Adding to 643116103315401 its reverse (104513301611346), we get a palindrome (747629404926747).

The spelling of 643116103315401 in words is "six hundred forty-three trillion, one hundred sixteen billion, one hundred three million, three hundred fifteen thousand, four hundred one".