163716601506 has 16 divisors (see below), whose sum is σ = 327437380800. Its totient is φ = 54571504208.

The previous prime is 163716601469. The next prime is 163716601513. The reversal of 163716601506 is 605106617361.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 600460 + ... + 829448.

It is an arithmetic number, because the mean of its divisors is an integer number (20464836300).

Almost surely, 2^163716601506 is an apocalyptic number.

163716601506 is an abundant number, since it is smaller than the sum of its proper divisors (163720779294).

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

163716601506 is a wasteful number, since it uses less digits than its factorization.

163716601506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348153.

The product of its (nonzero) digits is 136080, while the sum is 42.

The spelling of 163716601506 in words is "one hundred sixty-three billion, seven hundred sixteen million, six hundred one thousand, five hundred six".