11166515050 has 12 divisors (see below), whose sum is σ = 20769718086. Its totient is φ = 4466606000.

The previous prime is 11166515027. The next prime is 11166515077. The reversal of 11166515050 is 5051566111.

It can be written as a sum of positive squares in 3 ways, for example, as 8879858289 + 2286656761 = 94233^2 + 47819^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 111665101 + ... + 111665200.

Almost surely, 2^11166515050 is an apocalyptic number.

11166515050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11166515050 is a deficient number, since it is larger than the sum of its proper divisors (9603203036).

11166515050 is a wasteful number, since it uses less digits than its factorization.

11166515050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223330313 (or 223330308 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 31.

The spelling of 11166515050 in words is "eleven billion, one hundred sixty-six million, five hundred fifteen thousand, fifty".