1163800011638 has 48 divisors (see below), whose sum is σ = 2107906261776. Its totient is φ = 476235217920.

The previous prime is 1163800011637. The next prime is 1163800011641. The reversal of 1163800011638 is 8361100083611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163800011637) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2743331 + ... + 3139022.

It is an arithmetic number, because the mean of its divisors is an integer number (43914713787).

Almost surely, 2^{1163800011638} is an apocalyptic number.

1163800011638 is a deficient number, since it is larger than the sum of its proper divisors (944106250138).

1163800011638 is a wasteful number, since it uses less digits than its factorization.

1163800011638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5882429 (or 5882406 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 38.

Multiplying 1163800011638 by its sum of digits (38), we get a palindrome (44224400442244).

The spelling of 1163800011638 in words is "one trillion, one hundred sixty-three billion, eight hundred million, eleven thousand, six hundred thirty-eight".