2066702520 has 64 divisors (see below), whose sum is σ = 6203653920. Its totient is φ = 550805504.

The previous prime is 2066702459. The next prime is 2066702527. The reversal of 2066702520 is 252076602.

2066702520 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 45461²-1.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2066702527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 268972 + ... + 276548.

Almost surely, 2^2066702520 is an apocalyptic number.

2066702520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2066702520 is an abundant number, since it is smaller than the sum of its proper divisors (4136951400).

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

2066702520 is a wasteful number, since it uses less digits than its factorization.

2066702520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9864 (or 9860 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 2066702520 is about 45460.9999890016. Note that the first 4 decimals coincide. The cubic root of 2066702520 is about 1273.7748107497.

The spelling of 2066702520 in words is "two billion, sixty-six million, seven hundred two thousand, five hundred twenty".