3654656204020 has 12 divisors (see below), whose sum is σ = 7674778028484. Its totient is φ = 1461862481600.

The previous prime is 3654656203999. The next prime is 3654656204027. The reversal of 3654656204020 is 204026564563.

It can be written as a sum of positive squares in 2 ways, for example, as 2242104937956 + 1412551266064 = 1497366^2 + 1188508^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3654656204027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91366405081 + ... + 91366405120.

It is an arithmetic number, because the mean of its divisors is an integer number (639564835707).

Almost surely, 2^{3654656204020} is an apocalyptic number.

It is an amenable number.

3654656204020 is an abundant number, since it is smaller than the sum of its proper divisors (4020121824464).

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

3654656204020 is a wasteful number, since it uses less digits than its factorization.

3654656204020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182732810210 (or 182732810208 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 43.

The spelling of 3654656204020 in words is "three trillion, six hundred fifty-four billion, six hundred fifty-six million, two hundred four thousand, twenty".