8140111550 has 12 divisors (see below), whose sum is σ = 15140607576. Its totient is φ = 3256044600.

The previous prime is 8140111549. The next prime is 8140111559. The reversal of 8140111550 is 551110418.

It is a super-2 number, since 2×8140111550² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8140111559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 81401066 + ... + 81401165.

It is an arithmetic number, because the mean of its divisors is an integer number (1261717298).

Almost surely, 2^8140111550 is an apocalyptic number.

8140111550 is a deficient number, since it is larger than the sum of its proper divisors (7000496026).

8140111550 is a wasteful number, since it uses less digits than its factorization.

8140111550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162802243 (or 162802238 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 26.

The square root of 8140111550 is about 90222.5667446898. The cubic root of 8140111550 is about 2011.6084540382.

Adding to 8140111550 its reverse (551110418), we get a palindrome (8691221968).

The spelling of 8140111550 in words is "eight billion, one hundred forty million, one hundred eleven thousand, five hundred fifty".