2616663666541 has 8 divisors (see below), whose sum is σ = 2660240055168. Its totient is φ = 2573109222000.

The previous prime is 2616663666527. The next prime is 2616663666571. The reversal of 2616663666541 is 1456663666162.

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 2616663666541 - 2⁷ = 2616663666413 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 (2616663666571) 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, 5245465 + ... + 5722606.

It is an arithmetic number, because the mean of its divisors is an integer number (332530006896).

Almost surely, 2^{2616663666541} is an apocalyptic number.

It is an amenable number.

2616663666541 is a deficient number, since it is larger than the sum of its proper divisors (43576388627).

2616663666541 is a wasteful number, since it uses less digits than its factorization.

2616663666541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10972043.

The product of its digits is 33592320, while the sum is 58.

The spelling of 2616663666541 in words is "two trillion, six hundred sixteen billion, six hundred sixty-three million, six hundred sixty-six thousand, five hundred forty-one".