1266163532 has 12 divisors (see below), whose sum is σ = 2275672560. Its totient is φ = 615971376.

The previous prime is 1266163529. The next prime is 1266163537. The reversal of 1266163532 is 2353616621.

It is a junction number, because it is equal to n+sod(n) for n = 1266163492 and 1266163501.

It is not an unprimeable number, because it can be changed into a prime (1266163537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4277432 + ... + 4277727.

It is an arithmetic number, because the mean of its divisors is an integer number (189639380).

Almost surely, 2^1266163532 is an apocalyptic number.

It is an amenable number.

1266163532 is a deficient number, since it is larger than the sum of its proper divisors (1009509028).

1266163532 is a wasteful number, since it uses less digits than its factorization.

1266163532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8555200 (or 8555198 counting only the distinct ones).

The product of its digits is 38880, while the sum is 35.

The square root of 1266163532 is about 35583.1917061975. The cubic root of 1266163532 is about 1081.8405777124.

The spelling of 1266163532 in words is "one billion, two hundred sixty-six million, one hundred sixty-three thousand, five hundred thirty-two".