5436438361566 has 16 divisors (see below), whose sum is σ = 10872920386944. Its totient is φ = 1812138843224.

The previous prime is 5436438361457. The next prime is 5436438361567. The reversal of 5436438361566 is 6651638346345.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5436438361567) 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, 71586 + ... + 3298181.

It is an arithmetic number, because the mean of its divisors is an integer number (679557524184).

Almost surely, 2^{5436438361566} is an apocalyptic number.

5436438361566 is an abundant number, since it is smaller than the sum of its proper divisors (5436482025378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5436438361566 is a wasteful number, since it uses less digits than its factorization.

5436438361566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3638655.

The product of its digits is 111974400, while the sum is 60.

The spelling of 5436438361566 in words is "five trillion, four hundred thirty-six billion, four hundred thirty-eight million, three hundred sixty-one thousand, five hundred sixty-six".