1266161148 has 72 divisors (see below), whose sum is σ = 3775815680. Its totient is φ = 350088480.

The previous prime is 1266161131. The next prime is 1266161167. The reversal of 1266161148 is 8411616621.

1266161148 is a `hidden beast` number, since 1 + 26 + 616 + 1 + 14 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73228 + ... + 88851.

Almost surely, 2^1266161148 is an apocalyptic number.

1266161148 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1266161148 is an abundant number, since it is smaller than the sum of its proper divisors (2509654532).

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

1266161148 is a wasteful number, since it uses less digits than its factorization.

1266161148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162127 (or 162122 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 1266161148 is about 35583.1582072193. The cubic root of 1266161148 is about 1081.8398987297.

Adding to 1266161148 its reverse (8411616621), we get a palindrome (9677777769).

The spelling of 1266161148 in words is "one billion, two hundred sixty-six million, one hundred sixty-one thousand, one hundred forty-eight".