1268588161 has 16 divisors (see below), whose sum is σ = 1404290304. Its totient is φ = 1139871744.

The previous prime is 1268588159. The next prime is 1268588171. The reversal of 1268588161 is 1618858621.

It is a cyclic number.

It is not a de Polignac number, because 1268588161 - 2¹ = 1268588159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1268588171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222796 + ... + 228418.

It is an arithmetic number, because the mean of its divisors is an integer number (87768144).

Almost surely, 2^1268588161 is an apocalyptic number.

It is an amenable number.

1268588161 is a deficient number, since it is larger than the sum of its proper divisors (135702143).

1268588161 is a wasteful number, since it uses less digits than its factorization.

1268588161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6240.

The product of its digits is 184320, while the sum is 46.

The square root of 1268588161 is about 35617.2452752876. The cubic root of 1268588161 is about 1082.5306911704.

The spelling of 1268588161 in words is "one billion, two hundred sixty-eight million, five hundred eighty-eight thousand, one hundred sixty-one".