43606554504661 has 8 divisors (see below), whose sum is σ = 44828464485464. Its totient is φ = 42386926337280.

The previous prime is 43606554504563. The next prime is 43606554504683. The reversal of 43606554504661 is 16640545560634.

It can be written as a sum of positive squares in 4 ways, for example, as 19901243688561 + 23705310816100 = 4461081^2 + 4868810^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43606554504661 - 2⁴¹ = 41407531249109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43606554504691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 570414600 + ... + 570491041.

It is an arithmetic number, because the mean of its divisors is an integer number (5603558060683).

Almost surely, 2^{43606554504661} is an apocalyptic number.

It is an amenable number.

43606554504661 is a deficient number, since it is larger than the sum of its proper divisors (1221909980803).

43606554504661 is a wasteful number, since it uses less digits than its factorization.

43606554504661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140906711.

The product of its (nonzero) digits is 31104000, while the sum is 55.

The spelling of 43606554504661 in words is "forty-three trillion, six hundred six billion, five hundred fifty-four million, five hundred four thousand, six hundred sixty-one".