2106866066435 has 24 divisors (see below), whose sum is σ = 2832081984720. Its totient is φ = 1502189899392.

The previous prime is 2106866066399. The next prime is 2106866066447. The reversal of 2106866066435 is 5346606686012.

It is not a de Polignac number, because 2106866066435 - 2²² = 2106861872131 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42963989 + ... + 43012998.

It is an arithmetic number, because the mean of its divisors is an integer number (118003416030).

Almost surely, 2^{2106866066435} is an apocalyptic number.

2106866066435 is a deficient number, since it is larger than the sum of its proper divisors (725215918285).

2106866066435 is a wasteful number, since it uses less digits than its factorization.

2106866066435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85977047 (or 85977034 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 53.

The spelling of 2106866066435 in words is "two trillion, one hundred six billion, eight hundred sixty-six million, sixty-six thousand, four hundred thirty-five".