2061365841549 has 12 divisors (see below), whose sum is σ = 3402889643296. Its totient is φ = 1177923337992.

The previous prime is 2061365841539. The next prime is 2061365841559. The reversal of 2061365841549 is 9451485631602.

2061365841549 is a `hidden beast` number, since 2 + 0 + 6 + 1 + 3 + 6 + 58 + 41 + 549 = 666.

It is an interprime number because it is at equal distance from previous prime (2061365841539) and next prime (2061365841559).

It is not a de Polignac number, because 2061365841549 - 2⁴ = 2061365841533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2061365841495 and 2061365841504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2061365841529) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16360046299 + ... + 16360046424.

Almost surely, 2^{2061365841549} is an apocalyptic number.

It is an amenable number.

2061365841549 is a deficient number, since it is larger than the sum of its proper divisors (1341523801747).

2061365841549 is a wasteful number, since it uses less digits than its factorization.

2061365841549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32720092736 (or 32720092733 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 54.

The spelling of 2061365841549 in words is "two trillion, sixty-one billion, three hundred sixty-five million, eight hundred forty-one thousand, five hundred forty-nine".