8445661016 has 32 divisors (see below), whose sum is σ = 17259222960. Its totient is φ = 3851029632.

The previous prime is 8445660991. The next prime is 8445661031. The reversal of 8445661016 is 6101665448.

It is a congruent 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, 480575 + ... + 497838.

Almost surely, 2^8445661016 is an apocalyptic number.

It is an amenable number.

8445661016 is an abundant number, since it is smaller than the sum of its proper divisors (8813561944).

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

8445661016 is a wasteful number, since it uses less digits than its factorization.

8445661016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978515 (or 978511 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 8445661016 is about 91900.2775621489. The cubic root of 8445661016 is about 2036.4693685133.

The spelling of 8445661016 in words is "eight billion, four hundred forty-five million, six hundred sixty-one thousand, sixteen".