9212415616 has 64 divisors (see below), whose sum is σ = 19048041000. Its totient is φ = 4432777216.

The previous prime is 9212415613. The next prime is 9212415661. The reversal of 9212415616 is 6165142129.

It can be written as a sum of positive squares in 4 ways, for example, as 3906750016 + 5305665600 = 62504^2 + 72840^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (9212415613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1172790 + ... + 1180618.

Almost surely, 2^9212415616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9212415616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9524020500).

9212415616 is an abundant number, since it is smaller than the sum of its proper divisors (9835625384).

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

9212415616 is a wasteful number, since it uses less digits than its factorization.

9212415616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8189 (or 8177 counting only the distinct ones).

The product of its digits is 25920, while the sum is 37.

The square root of 9212415616 is about 95981.3295177765. The cubic root of 9212415616 is about 2096.3212704128.

The spelling of 9212415616 in words is "nine billion, two hundred twelve million, four hundred fifteen thousand, six hundred sixteen".