38911118161 has 4 divisors (see below), whose sum is σ = 38927957824. Its totient is φ = 38894278500.

The previous prime is 38911118159. The next prime is 38911118171. The reversal of 38911118161 is 16181111983.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 38911118161 - 2¹ = 38911118159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38911118171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8416365 + ... + 8420986.

It is an arithmetic number, because the mean of its divisors is an integer number (9731989456).

Almost surely, 2^38911118161 is an apocalyptic number.

It is an amenable number.

38911118161 is a deficient number, since it is larger than the sum of its proper divisors (16839663).

38911118161 is a wasteful number, since it uses less digits than its factorization.

38911118161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16839662.

The product of its digits is 10368, while the sum is 40.

The spelling of 38911118161 in words is "thirty-eight billion, nine hundred eleven million, one hundred eighteen thousand, one hundred sixty-one".