1065997247564 has 24 divisors (see below), whose sum is σ = 1871199163680. Its totient is φ = 531369990144.

The previous prime is 1065997247551. The next prime is 1065997247617. The reversal of 1065997247564 is 4657427995601.

It is a super-2 number, since 2×1065997247564² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (65) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1065997247564.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3879137 + ... + 4144839.

It is an arithmetic number, because the mean of its divisors is an integer number (77966631820).

Almost surely, 2^{1065997247564} is an apocalyptic number.

It is an amenable number.

1065997247564 is a deficient number, since it is larger than the sum of its proper divisors (805201916116).

1065997247564 is a wasteful number, since it uses less digits than its factorization.

1065997247564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268769 (or 268767 counting only the distinct ones).

The product of its (nonzero) digits is 114307200, while the sum is 65.

The spelling of 1065997247564 in words is "one trillion, sixty-five billion, nine hundred ninety-seven million, two hundred forty-seven thousand, five hundred sixty-four".