2106121255066 has 8 divisors (see below), whose sum is σ = 3206333851200. Its totient is φ = 1037343304668.

The previous prime is 2106121255003. The next prime is 2106121255093. The reversal of 2106121255066 is 6605521216012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7858661266 + ... + 7858661533.

It is an arithmetic number, because the mean of its divisors is an integer number (400791731400).

Almost surely, 2^{2106121255066} is an apocalyptic number.

2106121255066 is a deficient number, since it is larger than the sum of its proper divisors (1100212596134).

2106121255066 is a wasteful number, since it uses less digits than its factorization.

2106121255066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15717322868.

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 2106121255066 in words is "two trillion, one hundred six billion, one hundred twenty-one million, two hundred fifty-five thousand, sixty-six".