1063646642636 has 12 divisors (see below), whose sum is σ = 1959349078680. Its totient is φ = 503832620160.

The previous prime is 1063646642629. The next prime is 1063646642671. The reversal of 1063646642636 is 6362466463601.

It is a super-2 number, since 2×1063646642636² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6997675205 + ... + 6997675356.

It is an arithmetic number, because the mean of its divisors is an integer number (163279089890).

Almost surely, 2^{1063646642636} is an apocalyptic number.

It is an amenable number.

1063646642636 is a deficient number, since it is larger than the sum of its proper divisors (895702436044).

1063646642636 is a wasteful number, since it uses less digits than its factorization.

1063646642636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13995350584 (or 13995350582 counting only the distinct ones).

The product of its (nonzero) digits is 13436928, while the sum is 53.

The spelling of 1063646642636 in words is "one trillion, sixty-three billion, six hundred forty-six million, six hundred forty-two thousand, six hundred thirty-six".