8681816161001 has 16 divisors (see below), whose sum is σ = 8986073990400. Its totient is φ = 8377885356288.

The previous prime is 8681816160949. The next prime is 8681816161021. The reversal of 8681816161001 is 1001616181868.

It is a cyclic number.

It is not a de Polignac number, because 8681816161001 - 2⁶ = 8681816160937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8681816161021) 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, 587912720 + ... + 587927486.

It is an arithmetic number, because the mean of its divisors is an integer number (561629624400).

Almost surely, 2^{8681816161001} is an apocalyptic number.

It is an amenable number.

8681816161001 is a deficient number, since it is larger than the sum of its proper divisors (304257829399).

8681816161001 is a wasteful number, since it uses less digits than its factorization.

8681816161001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24448.

The product of its (nonzero) digits is 110592, while the sum is 47.

The spelling of 8681816161001 in words is "eight trillion, six hundred eighty-one billion, eight hundred sixteen million, one hundred sixty-one thousand, one".