2116653400 has 48 divisors (see below), whose sum is σ = 4939639200. Its totient is φ = 843492480.

The previous prime is 2116653397. The next prime is 2116653401. The reversal of 2116653400 is 43566112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2116653401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34129 + ... + 73471.

It is an arithmetic number, because the mean of its divisors is an integer number (102909150).

Almost surely, 2^2116653400 is an apocalyptic number.

2116653400 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 2116653400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2469819600).

2116653400 is an abundant number, since it is smaller than the sum of its proper divisors (2822985800).

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

2116653400 is a wasteful number, since it uses less digits than its factorization.

2116653400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39628 (or 39619 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 2116653400 is about 46007.1016257273. The cubic root of 2116653400 is about 1283.9553349952.

The spelling of 2116653400 in words is "two billion, one hundred sixteen million, six hundred fifty-three thousand, four hundred".