2116703520 has 72 divisors (see below), whose sum is σ = 7223255676. Its totient is φ = 564453888.

The previous prime is 2116703489. The next prime is 2116703527. The reversal of 2116703520 is 253076112.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2071706256 + 44997264 = 45516^2 + 6708^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (2116703527) 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, 733527 + ... + 736406.

Almost surely, 2^2116703520 is an apocalyptic number.

2116703520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2116703520 is an abundant number, since it is smaller than the sum of its proper divisors (5106552156).

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

2116703520 is a wasteful number, since it uses less digits than its factorization.

2116703520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1469954 (or 1469943 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 2116703520 is about 46007.6463210193. The cubic root of 2116703520 is about 1283.9654691270.

Adding to 2116703520 its reverse (253076112), we get a palindrome (2369779632).

The spelling of 2116703520 in words is "two billion, one hundred sixteen million, seven hundred three thousand, five hundred twenty".