163691739606 has 32 divisors (see below), whose sum is σ = 335023653888. Its totient is φ = 53290752480.

The previous prime is 163691739599. The next prime is 163691739619. The reversal of 163691739606 is 606937196361.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6352260 + ... + 6377976.

It is an arithmetic number, because the mean of its divisors is an integer number (10469489184).

Almost surely, 2^163691739606 is an apocalyptic number.

163691739606 is an abundant number, since it is smaller than the sum of its proper divisors (171331914282).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163691739606 is a wasteful number, since it uses less digits than its factorization.

163691739606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50436.

The product of its (nonzero) digits is 6613488, while the sum is 57.

The spelling of 163691739606 in words is "one hundred sixty-three billion, six hundred ninety-one million, seven hundred thirty-nine thousand, six hundred six".