2116065700 has 72 divisors (see below), whose sum is σ = 5259038400. Its totient is φ = 723960960.

The previous prime is 2116065689. The next prime is 2116065709. The reversal of 2116065700 is 75606112.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (2116065709) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 353331 + ... + 359269.

It is an arithmetic number, because the mean of its divisors is an integer number (73042200).

Almost surely, 2^2116065700 is an apocalyptic number.

2116065700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2116065700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2629519200).

2116065700 is an abundant number, since it is smaller than the sum of its proper divisors (3142972700).

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

2116065700 is a wasteful number, since it uses less digits than its factorization.

2116065700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6469 (or 6462 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 2116065700 is about 46000.7141248916. The cubic root of 2116065700 is about 1283.8364916678.

The spelling of 2116065700 in words is "two billion, one hundred sixteen million, sixty-five thousand, seven hundred".