214242265561 has 4 divisors (see below), whose sum is σ = 214276080052. Its totient is φ = 214208451072.

The previous prime is 214242265511. The next prime is 214242265577. The reversal of 214242265561 is 165562242412.

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 145451467161 + 68790798400 = 381381^2 + 262280^2 .

It is a cyclic number.

It is not a de Polignac number, because 214242265561 - 2²¹ = 214240168409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214242265511) 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, 16897740 + ... + 16910413.

It is an arithmetic number, because the mean of its divisors is an integer number (53569020013).

Almost surely, 2^214242265561 is an apocalyptic number.

It is an amenable number.

214242265561 is a deficient number, since it is larger than the sum of its proper divisors (33814491).

214242265561 is an equidigital number, since it uses as much as digits as its factorization.

214242265561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33814490.

The product of its digits is 230400, while the sum is 40.

The spelling of 214242265561 in words is "two hundred fourteen billion, two hundred forty-two million, two hundred sixty-five thousand, five hundred sixty-one".