1366158916 has 12 divisors (see below), whose sum is σ = 2392282620. Its totient is φ = 682649600.

The previous prime is 1366158907. The next prime is 1366159009. The reversal of 1366158916 is 6198516631.

It can be written as a sum of positive squares in 2 ways, for example, as 1293840900 + 72318016 = 35970^2 + 8504^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100261 + ... + 113068.

It is an arithmetic number, because the mean of its divisors is an integer number (199356885).

Almost surely, 2^1366158916 is an apocalyptic number.

It is an amenable number.

1366158916 is a deficient number, since it is larger than the sum of its proper divisors (1026123704).

1366158916 is a wasteful number, since it uses less digits than its factorization.

1366158916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214934 (or 214932 counting only the distinct ones).

The product of its digits is 233280, while the sum is 46.

The square root of 1366158916 is about 36961.5870330266. The cubic root of 1366158916 is about 1109.6015982232.

The spelling of 1366158916 in words is "one billion, three hundred sixty-six million, one hundred fifty-eight thousand, nine hundred sixteen".