2116897902 has 256 divisors, whose sum is σ = 5951232000. Its totient is φ = 562391424.

The previous prime is 2116897889. The next prime is 2116897957. The reversal of 2116897902 is 2097986112.

It is a congruent number.

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, 25504753 + ... + 25504835.

It is an arithmetic number, because the mean of its divisors is an integer number (23247000).

Almost surely, 2^2116897902 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2116897902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2975616000).

2116897902 is an abundant number, since it is smaller than the sum of its proper divisors (3834334098).

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

2116897902 is an frugal number, since it uses more digits than its factorization.

2116897902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 2116897902 is about 46009.7587692003. The cubic root of 2116897902 is about 1284.0047711413.

The spelling of 2116897902 in words is "two billion, one hundred sixteen million, eight hundred ninety-seven thousand, nine hundred two".