83987095535616 has 1920 divisors, whose sum is σ = 301415968143360. Its totient is φ = 20177756356608.

The previous prime is 83987095535597. The next prime is 83987095535621. The reversal of 83987095535616 is 61653559078938.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 435166298016 + ... + 435166298208.

It is an arithmetic number, because the mean of its divisors is an integer number (156987483408).

Almost surely, 2^{83987095535616} 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 83987095535616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150707984071680).

83987095535616 is an abundant number, since it is smaller than the sum of its proper divisors (217428872607744).

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

83987095535616 is a wasteful number, since it uses less digits than its factorization.

83987095535616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417 (or 391 counting only the distinct ones).

The product of its (nonzero) digits is 1469664000, while the sum is 75.

The spelling of 83987095535616 in words is "eighty-three trillion, nine hundred eighty-seven billion, ninety-five million, five hundred thirty-five thousand, six hundred sixteen".