1068145511 has 4 divisors (see below), whose sum is σ = 1073208024. Its totient is φ = 1063083000.

The previous prime is 1068145501. The next prime is 1068145523. The reversal of 1068145511 is 1155418601.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1068145511 - 2¹⁸ = 1067883367 is a prime.

It is a super-2 number, since 2×1068145511² = 2281869665338902242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1068145501) 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, 2530940 + ... + 2531361.

It is an arithmetic number, because the mean of its divisors is an integer number (268302006).

Almost surely, 2^1068145511 is an apocalyptic number.

1068145511 is a deficient number, since it is larger than the sum of its proper divisors (5062513).

1068145511 is an equidigital number, since it uses as much as digits as its factorization.

1068145511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5062512.

The product of its (nonzero) digits is 4800, while the sum is 32.

The square root of 1068145511 is about 32682.4954830564. The cubic root of 1068145511 is about 1022.2178802934.

The spelling of 1068145511 in words is "one billion, sixty-eight million, one hundred forty-five thousand, five hundred eleven".