542216565613 has 4 divisors (see below), whose sum is σ = 543403035580. Its totient is φ = 541030095648.

The previous prime is 542216565599. The next prime is 542216565617. The reversal of 542216565613 is 316565612245.

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 471334425444 + 70882140169 = 686538^2 + 266237^2 .

It is a cyclic number.

It is not a de Polignac number, because 542216565613 - 2⁹ = 542216565101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542216565617) 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, 593234298 + ... + 593235211.

It is an arithmetic number, because the mean of its divisors is an integer number (135850758895).

Almost surely, 2^542216565613 is an apocalyptic number.

It is an amenable number.

542216565613 is a deficient number, since it is larger than the sum of its proper divisors (1186469967).

542216565613 is a wasteful number, since it uses less digits than its factorization.

542216565613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186469966.

The product of its digits is 1296000, while the sum is 46.

The spelling of 542216565613 in words is "five hundred forty-two billion, two hundred sixteen million, five hundred sixty-five thousand, six hundred thirteen".