1168001905 has 32 divisors (see below), whose sum is σ = 1646726400. Its totient is φ = 778643712.

The previous prime is 1168001899. The next prime is 1168001909. The reversal of 1168001905 is 5091008611.

It is not a de Polignac number, because 1168001905 - 2¹¹ = 1167999857 is a prime.

It is a super-4 number, since 4×1168001905⁴ (a number of 37 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (1168001909) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 342951 + ... + 346339.

It is an arithmetic number, because the mean of its divisors is an integer number (51460200).

Almost surely, 2^1168001905 is an apocalyptic number.

It is an amenable number.

1168001905 is a deficient number, since it is larger than the sum of its proper divisors (478724495).

1168001905 is a wasteful number, since it uses less digits than its factorization.

1168001905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3673.

The product of its (nonzero) digits is 2160, while the sum is 31.

The square root of 1168001905 is about 34176.0428516819. The cubic root of 1168001905 is about 1053.1280581819.

The spelling of 1168001905 in words is "one billion, one hundred sixty-eight million, one thousand, nine hundred five".