5381166906 has 32 divisors (see below), whose sum is σ = 11960928000. Its totient is φ = 1793305440.

The previous prime is 5381166881. The next prime is 5381166907. The reversal of 5381166906 is 6096611835.

It is a super-2 number, since 2×5381166906² = 57913914540459225672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5381166907) 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, 299670 + ... + 317118.

It is an arithmetic number, because the mean of its divisors is an integer number (373779000).

Almost surely, 2^5381166906 is an apocalyptic number.

5381166906 is an abundant number, since it is smaller than the sum of its proper divisors (6579761094).

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

5381166906 is a wasteful number, since it uses less digits than its factorization.

5381166906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23171 (or 23165 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 5381166906 is about 73356.4373862308. The cubic root of 5381166906 is about 1752.3687005510.

The spelling of 5381166906 in words is "five billion, three hundred eighty-one million, one hundred sixty-six thousand, nine hundred six".