163397793361 has 8 divisors (see below), whose sum is σ = 179147880000. Its totient is φ = 147796997040.

The previous prime is 163397793337. The next prime is 163397793409.

163397793361 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 163397793361 - 2¹³ = 163397785169 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 163397793296 and 163397793305.

It is not an unprimeable number, because it can be changed into a prime (163397793311) 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, 37320286 + ... + 37324663.

It is an arithmetic number, because the mean of its divisors is an integer number (22393485000).

Almost surely, 2^163397793361 is an apocalyptic number.

163397793361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

163397793361 is a deficient number, since it is larger than the sum of its proper divisors (15750086639).

163397793361 is a wasteful number, since it uses less digits than its factorization.

163397793361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74645159.

The product of its digits is 11573604, while the sum is 58.

The spelling of 163397793361 in words is "one hundred sixty-three billion, three hundred ninety-seven million, seven hundred ninety-three thousand, three hundred sixty-one".