2661216562058 has 16 divisors (see below), whose sum is σ = 4201960852320. Its totient is φ = 1260564276816.

The previous prime is 2661216562027. The next prime is 2661216562073. The reversal of 2661216562058 is 8502656121662.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2661216561997 and 2661216562015.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4704416 + ... + 5239652.

It is an arithmetic number, because the mean of its divisors is an integer number (262622553270).

Almost surely, 2^{2661216562058} is an apocalyptic number.

2661216562058 is a deficient number, since it is larger than the sum of its proper divisors (1540744290262).

2661216562058 is a wasteful number, since it uses less digits than its factorization.

2661216562058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666101.

The product of its (nonzero) digits is 2073600, while the sum is 50.

The spelling of 2661216562058 in words is "two trillion, six hundred sixty-one billion, two hundred sixteen million, five hundred sixty-two thousand, fifty-eight".