2066521536 has 42 divisors (see below), whose sum is σ = 5923312512. Its totient is φ = 688840320.

The previous prime is 2066521531. The next prime is 2066521543. The reversal of 2066521536 is 6351256602.

It is a happy number.

2066521536 is a `hidden beast` number, since 20 + 66 + 521 + 53 + 6 = 666.

It is a super-2 number, since 2×2066521536² = 8541022517503598592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2066521536.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2066521531) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1793280 + ... + 1794431.

Almost surely, 2^2066521536 is an apocalyptic number.

It is an amenable number.

2066521536 is an abundant number, since it is smaller than the sum of its proper divisors (3856790976).

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

2066521536 is a wasteful number, since it uses less digits than its factorization.

2066521536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3587729 (or 3587716 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 2066521536 is about 45459.0094040774. The cubic root of 2066521536 is about 1273.7376275899.

The spelling of 2066521536 in words is "two billion, sixty-six million, five hundred twenty-one thousand, five hundred thirty-six".