643116264411202 has 8 divisors (see below), whose sum is σ = 982875800326716. Its totient is φ = 315490997635632.

The previous prime is 643116264411109. The next prime is 643116264411211. The reversal of 643116264411202 is 202114462611346.

It can be written as a sum of positive squares in 2 ways, for example, as 634442950798801 + 8673313612401 = 25188151^2 + 2945049^2 .

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

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, 3033567284853 + ... + 3033567285064.

Almost surely, 2^{643116264411202} is an apocalyptic number.

643116264411202 is a deficient number, since it is larger than the sum of its proper divisors (339759535915514).

643116264411202 is a wasteful number, since it uses less digits than its factorization.

643116264411202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6067134569972.

The product of its (nonzero) digits is 331776, while the sum is 43.

The spelling of 643116264411202 in words is "six hundred forty-three trillion, one hundred sixteen billion, two hundred sixty-four million, four hundred eleven thousand, two hundred two".