163734437361 has 8 divisors (see below), whose sum is σ = 238159181664. Its totient is φ = 99232992320.

The previous prime is 163734437357. The next prime is 163734437393.

163734437361 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 163734437361 - 2² = 163734437357 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 163734437361.

It is not an unprimeable number, because it can be changed into a prime (163734437311) 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, 2480824776 + ... + 2480824841.

It is an arithmetic number, because the mean of its divisors is an integer number (29769897708).

Almost surely, 2^163734437361 is an apocalyptic number.

163734437361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

163734437361 is a deficient number, since it is larger than the sum of its proper divisors (74424744303).

163734437361 is a wasteful number, since it uses less digits than its factorization.

163734437361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4961649631.

The product of its digits is 2286144, while the sum is 48.

The spelling of 163734437361 in words is "one hundred sixty-three billion, seven hundred thirty-four million, four hundred thirty-seven thousand, three hundred sixty-one".