8161237716 has 12 divisors (see below), whose sum is σ = 19042888032. Its totient is φ = 2720412568.

The previous prime is 8161237697. The next prime is 8161237757. The reversal of 8161237716 is 6177321618.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340051560 + ... + 340051583.

It is an arithmetic number, because the mean of its divisors is an integer number (1586907336).

Almost surely, 2^8161237716 is an apocalyptic number.

It is an amenable number.

8161237716 is an abundant number, since it is smaller than the sum of its proper divisors (10881650316).

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

8161237716 is a wasteful number, since it uses less digits than its factorization.

8161237716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680103150 (or 680103148 counting only the distinct ones).

The product of its digits is 84672, while the sum is 42.

The square root of 8161237716 is about 90339.5689385332. The cubic root of 8161237716 is about 2013.3472042546.

The spelling of 8161237716 in words is "eight billion, one hundred sixty-one million, two hundred thirty-seven thousand, seven hundred sixteen".