4066521560 has 32 divisors (see below), whose sum is σ = 9151961040. Its totient is φ = 1626201984.

The previous prime is 4066521497. The next prime is 4066521577. The reversal of 4066521560 is 651256604.

It is a self number, because there is not a number n which added to its sum of digits gives 4066521560.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188699 + ... + 209141.

Almost surely, 2^4066521560 is an apocalyptic number.

4066521560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4066521560 is an abundant number, since it is smaller than the sum of its proper divisors (5085439480).

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

4066521560 is a wasteful number, since it uses less digits than its factorization.

4066521560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25427 (or 25423 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 4066521560 is about 63769.2838285016. The cubic root of 4066521560 is about 1596.1524164379.

The spelling of 4066521560 in words is "four billion, sixty-six million, five hundred twenty-one thousand, five hundred sixty".