6650116525 has 24 divisors (see below), whose sum is σ = 9402851304. Its totient is φ = 4621977600.

The previous prime is 6650116513. The next prime is 6650116553. The reversal of 6650116525 is 5256110566.

It can be written as a sum of positive squares in 12 ways, for example, as 4390255081 + 2259861444 = 66259^2 + 47538^2 .

It is not a de Polignac number, because 6650116525 - 2⁹ = 6650116013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 596296 + ... + 607345.

It is an arithmetic number, because the mean of its divisors is an integer number (391785471).

Almost surely, 2^6650116525 is an apocalyptic number.

6650116525 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6650116525 is a deficient number, since it is larger than the sum of its proper divisors (2752734779).

6650116525 is a wasteful number, since it uses less digits than its factorization.

6650116525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203681 (or 1203676 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 37.

The square root of 6650116525 is about 81548.2466089860. The cubic root of 6650116525 is about 1880.5133392398.

The spelling of 6650116525 in words is "six billion, six hundred fifty million, one hundred sixteen thousand, five hundred twenty-five".