163340739689 has 16 divisors (see below), whose sum is σ = 173294278656. Its totient is φ = 153722836800.

The previous prime is 163340739659. The next prime is 163340739707. The reversal of 163340739689 is 986937043361.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 163340739689 - 2²⁰ = 163339691113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163340739619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128282 + ... + 585779.

It is an arithmetic number, because the mean of its divisors is an integer number (10830892416).

Almost surely, 2^163340739689 is an apocalyptic number.

It is an amenable number.

163340739689 is a deficient number, since it is larger than the sum of its proper divisors (9953538967).

163340739689 is a wasteful number, since it uses less digits than its factorization.

163340739689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714296.

The product of its (nonzero) digits is 17635968, while the sum is 59.

The spelling of 163340739689 in words is "one hundred sixty-three billion, three hundred forty million, seven hundred thirty-nine thousand, six hundred eighty-nine".