11660010550 has 12 divisors (see below), whose sum is σ = 21687619716. Its totient is φ = 4664004200.

The previous prime is 11660010539. The next prime is 11660010559. The reversal of 11660010550 is 5501006611.

It is a super-2 number, since 2×11660010550² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11660010559) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 116600056 + ... + 116600155.

It is an arithmetic number, because the mean of its divisors is an integer number (1807301643).

Almost surely, 2^11660010550 is an apocalyptic number.

11660010550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11660010550 is a deficient number, since it is larger than the sum of its proper divisors (10027609166).

11660010550 is a wasteful number, since it uses less digits than its factorization.

11660010550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233200223 (or 233200218 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 25.

The spelling of 11660010550 in words is "eleven billion, six hundred sixty million, ten thousand, five hundred fifty".