1071665067 has 32 divisors (see below), whose sum is σ = 1593158400. Its totient is φ = 635310720.

The previous prime is 1071665053. The next prime is 1071665069. The reversal of 1071665067 is 7605661701.

It is not a de Polignac number, because 1071665067 - 2⁴ = 1071665051 is a prime.

It is a super-2 number, since 2×1071665067² = 2296932031656228978, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1071665069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 327813 + ... + 331065.

It is an arithmetic number, because the mean of its divisors is an integer number (49786200).

Almost surely, 2^1071665067 is an apocalyptic number.

1071665067 is a deficient number, since it is larger than the sum of its proper divisors (521493333).

1071665067 is a wasteful number, since it uses less digits than its factorization.

1071665067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3483.

The product of its (nonzero) digits is 52920, while the sum is 39.

The square root of 1071665067 is about 32736.2958655985. The cubic root of 1071665067 is about 1023.3393906444.

The spelling of 1071665067 in words is "one billion, seventy-one million, six hundred sixty-five thousand, sixty-seven".