1168216136 has 16 divisors (see below), whose sum is σ = 2215017900. Its totient is φ = 577544704.

The previous prime is 1168216129. The next prime is 1168216151. The reversal of 1168216136 is 6316128611.

It can be written as a sum of positive squares in 2 ways, for example, as 893651236 + 274564900 = 29894^2 + 16570^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1168216096 and 1168216105.

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, 819665 + ... + 821088.

Almost surely, 2^1168216136 is an apocalyptic number.

It is an amenable number.

1168216136 is a deficient number, since it is larger than the sum of its proper divisors (1046801764).

1168216136 is a wasteful number, since it uses less digits than its factorization.

1168216136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640848 (or 1640844 counting only the distinct ones).

The product of its digits is 10368, while the sum is 35.

The square root of 1168216136 is about 34179.1769356724. The cubic root of 1168216136 is about 1053.1924413202.

The spelling of 1168216136 in words is "one billion, one hundred sixty-eight million, two hundred sixteen thousand, one hundred thirty-six".