1166525450 has 12 divisors (see below), whose sum is σ = 2169737430. Its totient is φ = 466610160.

The previous prime is 1166525419. The next prime is 1166525461. The reversal of 1166525450 is 545256611.

It can be written as a sum of positive squares in 3 ways, for example, as 725063329 + 441462121 = 26927^2 + 21011^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1166525450.

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, 11665205 + ... + 11665304.

Almost surely, 2^1166525450 is an apocalyptic number.

1166525450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1166525450 is a deficient number, since it is larger than the sum of its proper divisors (1003211980).

1166525450 is a wasteful number, since it uses less digits than its factorization.

1166525450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23330521 (or 23330516 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 1166525450 is about 34154.4352903104. The cubic root of 1166525450 is about 1052.6841228837.

The spelling of 1166525450 in words is "one billion, one hundred sixty-six million, five hundred twenty-five thousand, four hundred fifty".