3645630055541 has 8 divisors (see below), whose sum is σ = 3670415580600. Its totient is φ = 3620848773568.

The previous prime is 3645630055537. The next prime is 3645630055589. The reversal of 3645630055541 is 1455500365463.

It can be written as a sum of positive squares in 4 ways, for example, as 58189500625 + 3587440554916 = 241225^2 + 1894054^2 .

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 3645630055541 - 2² = 3645630055537 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 (3645630055511) 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, 673055 + ... + 2782851.

It is an arithmetic number, because the mean of its divisors is an integer number (458801947575).

Almost surely, 2^{3645630055541} is an apocalyptic number.

It is an amenable number.

3645630055541 is a deficient number, since it is larger than the sum of its proper divisors (24785525059).

3645630055541 is a wasteful number, since it uses less digits than its factorization.

3645630055541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2121543.

The product of its (nonzero) digits is 3240000, while the sum is 47.

The spelling of 3645630055541 in words is "three trillion, six hundred forty-five billion, six hundred thirty million, fifty-five thousand, five hundred forty-one".