1064663811946 has 32 divisors (see below), whose sum is σ = 1827613052928. Its totient is φ = 455666152320.

The previous prime is 1064663811943. The next prime is 1064663811971. The reversal of 1064663811946 is 6491183664601.

It is a super-2 number, since 2×1064663811946² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1064663811943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32135886 + ... + 32168998.

It is an arithmetic number, because the mean of its divisors is an integer number (57112907904).

Almost surely, 2^{1064663811946} is an apocalyptic number.

1064663811946 is a deficient number, since it is larger than the sum of its proper divisors (762949240982).

1064663811946 is a wasteful number, since it uses less digits than its factorization.

1064663811946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36166.

The product of its (nonzero) digits is 4478976, while the sum is 55.

The spelling of 1064663811946 in words is "one trillion, sixty-four billion, six hundred sixty-three million, eight hundred eleven thousand, nine hundred forty-six".