2061651550516 has 12 divisors (see below), whose sum is σ = 3610323056032. Its totient is φ = 1030130677368.

The previous prime is 2061651550499. The next prime is 2061651550561. The reversal of 2061651550516 is 6150551561602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173767800 + ... + 173779663.

Almost surely, 2^{2061651550516} is an apocalyptic number.

It is an amenable number.

2061651550516 is a deficient number, since it is larger than the sum of its proper divisors (1548671505516).

2061651550516 is a wasteful number, since it uses less digits than its factorization.

2061651550516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347548950 (or 347548948 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 43.

The spelling of 2061651550516 in words is "two trillion, sixty-one billion, six hundred fifty-one million, five hundred fifty thousand, five hundred sixteen".