1166401150 has 12 divisors (see below), whose sum is σ = 2169506232. Its totient is φ = 466560440.

The previous prime is 1166401121. The next prime is 1166401163. The reversal of 1166401150 is 511046611.

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

It is a congruent number.

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, 11663962 + ... + 11664061.

It is an arithmetic number, because the mean of its divisors is an integer number (180792186).

Almost surely, 2^1166401150 is an apocalyptic number.

1166401150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1166401150 is a deficient number, since it is larger than the sum of its proper divisors (1003105082).

1166401150 is a wasteful number, since it uses less digits than its factorization.

1166401150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23328035 (or 23328030 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 1166401150 is about 34152.6155660149. The cubic root of 1166401150 is about 1052.6467317051.

Adding to 1166401150 its reverse (511046611), we get a palindrome (1677447761).

The spelling of 1166401150 in words is "one billion, one hundred sixty-six million, four hundred one thousand, one hundred fifty".