83387609216 has 64 divisors (see below), whose sum is σ = 171760095000. Its totient is φ = 40294342656.

The previous prime is 83387609189. The next prime is 83387609251. The reversal of 83387609216 is 61290678338.

It can be written as a sum of positive squares in 4 ways, for example, as 75019018816 + 8368590400 = 273896^2 + 91480^2 .

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

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, 646580 + ... + 764748.

Almost surely, 2^83387609216 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 83387609216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85880047500).

83387609216 is an abundant number, since it is smaller than the sum of its proper divisors (88372485784).

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

83387609216 is a wasteful number, since it uses less digits than its factorization.

83387609216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118369 (or 118357 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 53.

The spelling of 83387609216 in words is "eighty-three billion, three hundred eighty-seven million, six hundred nine thousand, two hundred sixteen".