1165500050 has 72 divisors (see below), whose sum is σ = 2561019120. Its totient is φ = 391185600.

The previous prime is 1165500029. The next prime is 1165500073. The reversal of 1165500050 is 500055611.

It is a junction number, because it is equal to n+sod(n) for n = 1165499989 and 1165500025.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 86681 + ... + 99219.

It is an arithmetic number, because the mean of its divisors is an integer number (35569710).

Almost surely, 2^1165500050 is an apocalyptic number.

1165500050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1165500050 is an abundant number, since it is smaller than the sum of its proper divisors (1395519070).

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

1165500050 is a wasteful number, since it uses less digits than its factorization.

1165500050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12588 (or 12570 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 1165500050 is about 34139.4207625144. The cubic root of 1165500050 is about 1052.3755887572.

Adding to 1165500050 its reverse (500055611), we get a palindrome (1665555661).

The spelling of 1165500050 in words is "one billion, one hundred sixty-five million, five hundred thousand, fifty".