6066606155661 has 24 divisors (see below), whose sum is σ = 8814496364856. Its totient is φ = 4020595384320.

The previous prime is 6066606155609. The next prime is 6066606155663. The reversal of 6066606155661 is 1665516066606.

It can be written as a sum of positive squares in 4 ways, for example, as 483810669225 + 5582795486436 = 695565^2 + 2362794^2 .

It is not a de Polignac number, because 6066606155661 - 2²¹ = 6066604058509 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6066606155598 and 6066606155607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6066606155663) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3808261 + ... + 5161013.

It is an arithmetic number, because the mean of its divisors is an integer number (367270681869).

Almost surely, 2^{6066606155661} is an apocalyptic number.

It is an amenable number.

6066606155661 is a deficient number, since it is larger than the sum of its proper divisors (2747890209195).

6066606155661 is a wasteful number, since it uses less digits than its factorization.

6066606155661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355693 (or 1355690 counting only the distinct ones).

The product of its (nonzero) digits is 6998400, while the sum is 54.

The spelling of 6066606155661 in words is "six trillion, sixty-six billion, six hundred six million, one hundred fifty-five thousand, six hundred sixty-one".