2666650066635 has 32 divisors (see below), whose sum is σ = 4458171179520. Its totient is φ = 1358537038848.

The previous prime is 2666650066579. The next prime is 2666650066669. The reversal of 2666650066635 is 5366600566662.

It is not a de Polignac number, because 2666650066635 - 2¹⁵ = 2666650033867 is a prime.

It is a super-2 number, since 2×2666650066635² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4974694 + ... + 5484603.

It is an arithmetic number, because the mean of its divisors is an integer number (139317849360).

Almost surely, 2^{2666650066635} is an apocalyptic number.

2666650066635 is a deficient number, since it is larger than the sum of its proper divisors (1791521112885).

2666650066635 is a wasteful number, since it uses less digits than its factorization.

2666650066635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10460067.

The product of its (nonzero) digits is 41990400, while the sum is 57.

The spelling of 2666650066635 in words is "two trillion, six hundred sixty-six billion, six hundred fifty million, sixty-six thousand, six hundred thirty-five".