1163644366419 has 8 divisors (see below), whose sum is σ = 1723917579920. Its totient is φ = 775762910928.

The previous prime is 1163644366397. The next prime is 1163644366453. The reversal of 1163644366419 is 9146634463611.

1163644366419 is a `hidden beast` number, since 1 + 163 + 6 + 4 + 4 + 3 + 66 + 419 = 666.

It is not a de Polignac number, because 1163644366419 - 2⁹ = 1163644365907 is a prime.

It is a super-2 number, since 2×1163644366419² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1163644366919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21548969722 + ... + 21548969775.

It is an arithmetic number, because the mean of its divisors is an integer number (215489697490).

Almost surely, 2^{1163644366419} is an apocalyptic number.

1163644366419 is a deficient number, since it is larger than the sum of its proper divisors (560273213501).

1163644366419 is an equidigital number, since it uses as much as digits as its factorization.

1163644366419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43097939506 (or 43097939500 counting only the distinct ones).

The product of its digits is 6718464, while the sum is 54.

The spelling of 1163644366419 in words is "one trillion, one hundred sixty-three billion, six hundred forty-four million, three hundred sixty-six thousand, four hundred nineteen".