3662566420 has 24 divisors (see below), whose sum is σ = 7693414344. Its totient is φ = 1464640896.

The previous prime is 3662566399. The next prime is 3662566433. The reversal of 3662566420 is 246652663.

It can be written as a sum of positive squares in 4 ways, for example, as 600936196 + 3061630224 = 24514^2 + 55332^2 .

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

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, 61114 + ... + 105166.

It is an arithmetic number, because the mean of its divisors is an integer number (320558931).

Almost surely, 2^3662566420 is an apocalyptic number.

It is an amenable number.

3662566420 is an abundant number, since it is smaller than the sum of its proper divisors (4030847924).

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

3662566420 is a wasteful number, since it uses less digits than its factorization.

3662566420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48219 (or 48217 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 40.

The square root of 3662566420 is about 60519.1409390451. The cubic root of 3662566420 is about 1541.4466672322.

The spelling of 3662566420 in words is "three billion, six hundred sixty-two million, five hundred sixty-six thousand, four hundred twenty".