8118581603 has 8 divisors (see below), whose sum is σ = 8879763456. Its totient is φ = 7361254600.

The previous prime is 8118581593. The next prime is 8118581609. The reversal of 8118581603 is 3061858118.

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

It is a cyclic number.

It is not a de Polignac number, because 8118581603 - 2⁶ = 8118581539 is a prime.

It is a super-2 number, since 2×8118581603² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8118581609) 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, 959303 + ... + 967728.

It is an arithmetic number, because the mean of its divisors is an integer number (1109970432).

Almost surely, 2^8118581603 is an apocalyptic number.

8118581603 is a deficient number, since it is larger than the sum of its proper divisors (761181853).

8118581603 is a wasteful number, since it uses less digits than its factorization.

8118581603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1927425.

The product of its (nonzero) digits is 46080, while the sum is 41.

The square root of 8118581603 is about 90103.1719918894. The cubic root of 8118581603 is about 2009.8333733971.

The spelling of 8118581603 in words is "eight billion, one hundred eighteen million, five hundred eighty-one thousand, six hundred three".