8121023616 has 32 divisors (see below), whose sum is σ = 21571470000. Its totient is φ = 2707007744.

The previous prime is 8121023597. The next prime is 8121023629. The reversal of 8121023616 is 6163201218.

It is a tau number, because it is divible by the number of its divisors (32).

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, 10573866 + ... + 10574633.

Almost surely, 2^8121023616 is an apocalyptic number.

It is an amenable number.

8121023616 is an abundant number, since it is smaller than the sum of its proper divisors (13450446384).

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

8121023616 is a wasteful number, since it uses less digits than its factorization.

8121023616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21148516 (or 21148504 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 8121023616 is about 90116.7221774072. The cubic root of 8121023616 is about 2010.0348678390.

The spelling of 8121023616 in words is "eight billion, one hundred twenty-one million, twenty-three thousand, six hundred sixteen".