2055716518642 has 8 divisors (see below), whose sum is σ = 3083634028332. Its totient is φ = 1027838509200.

The previous prime is 2055716518627. The next prime is 2055716518643. The reversal of 2055716518642 is 2468156175502.

It can be written as a sum of positive squares in 2 ways, for example, as 1795168545921 + 260547972721 = 1339839^2 + 510439^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 2055716518642.

It is not an unprimeable number, because it can be changed into a prime (2055716518643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9744609 + ... + 9953332.

Almost surely, 2^{2055716518642} is an apocalyptic number.

2055716518642 is a deficient number, since it is larger than the sum of its proper divisors (1027917509690).

2055716518642 is a wasteful number, since it uses less digits than its factorization.

2055716518642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19750124.

The product of its (nonzero) digits is 4032000, while the sum is 52.

The spelling of 2055716518642 in words is "two trillion, fifty-five billion, seven hundred sixteen million, five hundred eighteen thousand, six hundred forty-two".