214661243633 has 4 divisors (see below), whose sum is σ = 214683770868. Its totient is φ = 214638716400.

The previous prime is 214661243611. The next prime is 214661243659. The reversal of 214661243633 is 336342166412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17824386064 + 196836857569 = 133508^2 + 443663^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214661243633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214661243663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11249318 + ... + 11268383.

It is an arithmetic number, because the mean of its divisors is an integer number (53670942717).

Almost surely, 2^214661243633 is an apocalyptic number.

It is an amenable number.

214661243633 is a deficient number, since it is larger than the sum of its proper divisors (22527235).

214661243633 is an equidigital number, since it uses as much as digits as its factorization.

214661243633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22527234.

The product of its digits is 373248, while the sum is 41.

The spelling of 214661243633 in words is "two hundred fourteen billion, six hundred sixty-one million, two hundred forty-three thousand, six hundred thirty-three".