163730829742 has 4 divisors (see below), whose sum is σ = 245596244616. Its totient is φ = 81865414870.

The previous prime is 163730829719. The next prime is 163730829751. The reversal of 163730829742 is 247928037361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 247928037361 = 557 ⋅445113173.

It is a self number, because there is not a number n which added to its sum of digits gives 163730829742.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40932707434 + ... + 40932707437.

It is an arithmetic number, because the mean of its divisors is an integer number (61399061154).

Almost surely, 2^163730829742 is an apocalyptic number.

163730829742 is a deficient number, since it is larger than the sum of its proper divisors (81865414874).

163730829742 is an equidigital number, since it uses as much as digits as its factorization.

163730829742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81865414873.

The product of its (nonzero) digits is 3048192, while the sum is 52.

The spelling of 163730829742 in words is "one hundred sixty-three billion, seven hundred thirty million, eight hundred twenty-nine thousand, seven hundred forty-two".