2164201266345 has 8 divisors (see below), whose sum is σ = 3462722026176. Its totient is φ = 1154240675376.

The previous prime is 2164201266341. The next prime is 2164201266349. The reversal of 2164201266345 is 5436621024612.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2164201266341) and next prime (2164201266349).

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

It is not a de Polignac number, because 2164201266345 - 2² = 2164201266341 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2164201266297 and 2164201266306.

It is not an unprimeable number, because it can be changed into a prime (2164201266341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72140042197 + ... + 72140042226.

It is an arithmetic number, because the mean of its divisors is an integer number (432840253272).

Almost surely, 2^{2164201266345} is an apocalyptic number.

It is an amenable number.

2164201266345 is a deficient number, since it is larger than the sum of its proper divisors (1298520759831).

2164201266345 is a wasteful number, since it uses less digits than its factorization.

2164201266345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144280084431.

The product of its (nonzero) digits is 414720, while the sum is 42.

The spelling of 2164201266345 in words is "two trillion, one hundred sixty-four billion, two hundred one million, two hundred sixty-six thousand, three hundred forty-five".