2101305666346 has 4 divisors (see below), whose sum is σ = 3151958499522.
Its totient is φ = 1050652833172.
The previous prime is 2101305666331. The next prime is 2101305666347. The reversal of 2101305666346 is 6436665031012.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in only one way, i.e., 2095125977025 + 6179689321 = 1447455^2 + 78611^2
It is not an unprimeable number, because it can be changed into a prime (2101305666347) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525326416585 + ... + 525326416588.
Almost surely, 22101305666346 is an apocalyptic number.
2101305666346 is a deficient number, since it is larger than the sum of its proper divisors (1050652833176).
2101305666346 is a wasteful number, since it uses less digits than its factorization.
2101305666346 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1050652833175.
The product of its (nonzero) digits is 466560, while the sum is 43.
The spelling of 2101305666346 in words is "two trillion, one hundred one billion, three hundred five million, six hundred sixty-six thousand, three hundred forty-six".