2666650566662 has 16 divisors (see below), whose sum is σ = 4008347694000. Its totient is φ = 1330535556480.

The previous prime is 2666650566649. The next prime is 2666650566677.

2666650566662 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×2666650566662² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2666650566595 and 2666650566604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5875889 + ... + 6313427.

It is an arithmetic number, because the mean of its divisors is an integer number (250521730875).

Almost surely, 2^{2666650566662} is an apocalyptic number.

2666650566662 is a deficient number, since it is larger than the sum of its proper divisors (1341697127338).

2666650566662 is a wasteful number, since it uses less digits than its factorization.

2666650566662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443911.

The product of its (nonzero) digits is 167961600, while the sum is 62.

The spelling of 2666650566662 in words is "two trillion, six hundred sixty-six billion, six hundred fifty million, five hundred sixty-six thousand, six hundred sixty-two".