1065771601994 has 16 divisors (see below), whose sum is σ = 1749015814176. Its totient is φ = 483045548400.

The previous prime is 1065771601949. The next prime is 1065771602057. The reversal of 1065771601994 is 4991061775601.

It is a happy number.

It is a super-2 number, since 2×1065771601994² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69796637 + ... + 69811904.

It is an arithmetic number, because the mean of its divisors is an integer number (109313488386).

Almost surely, 2^{1065771601994} is an apocalyptic number.

1065771601994 is a deficient number, since it is larger than the sum of its proper divisors (683244212182).

1065771601994 is a wasteful number, since it uses less digits than its factorization.

1065771601994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139608901.

The product of its (nonzero) digits is 2857680, while the sum is 56.

The spelling of 1065771601994 in words is "one trillion, sixty-five billion, seven hundred seventy-one million, six hundred one thousand, nine hundred ninety-four".