5378416665 has 16 divisors (see below), whose sum is σ = 8746541376. Its totient is φ = 2821464000.

The previous prime is 5378416661. The next prime is 5378416679. The reversal of 5378416665 is 5666148735.

It is not a de Polignac number, because 5378416665 - 2² = 5378416661 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5378416661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2938111 + ... + 2939940.

It is an arithmetic number, because the mean of its divisors is an integer number (546658836).

Almost surely, 2^5378416665 is an apocalyptic number.

It is an amenable number.

5378416665 is a deficient number, since it is larger than the sum of its proper divisors (3368124711).

5378416665 is a wasteful number, since it uses less digits than its factorization.

5378416665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5878120.

The product of its digits is 3628800, while the sum is 51.

The square root of 5378416665 is about 73337.6892532073. The cubic root of 5378416665 is about 1752.0701124310.

The spelling of 5378416665 in words is "five billion, three hundred seventy-eight million, four hundred sixteen thousand, six hundred sixty-five".