5378636166 has 64 divisors (see below), whose sum is σ = 11672812800. Its totient is φ = 1646701056.

The previous prime is 5378636161. The next prime is 5378636191. The reversal of 5378636166 is 6616368735.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5378636161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 667570 + ... + 675578.

It is an arithmetic number, because the mean of its divisors is an integer number (182387700).

Almost surely, 2^5378636166 is an apocalyptic number.

5378636166 is an abundant number, since it is smaller than the sum of its proper divisors (6294176634).

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

5378636166 is a wasteful number, since it uses less digits than its factorization.

5378636166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8213.

The product of its digits is 3265920, while the sum is 51.

The square root of 5378636166 is about 73339.1857467752. The cubic root of 5378636166 is about 1752.0939469493.

The spelling of 5378636166 in words is "five billion, three hundred seventy-eight million, six hundred thirty-six thousand, one hundred sixty-six".