30542202661 has 2 divisors, whose sum is σ = 30542202662. Its totient is φ = 30542202660.

The previous prime is 30542202641. The next prime is 30542202671. The reversal of 30542202661 is 16620224503.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20286589761 + 10255612900 = 142431^2 + 101270^2 .

It is a cyclic number.

It is not a de Polignac number, because 30542202661 - 2¹³ = 30542194469 is a prime.

It is a super-2 number, since 2×30542202661² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30542202641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15271101330 + 15271101331.

It is an arithmetic number, because the mean of its divisors is an integer number (15271101331).

Almost surely, 2^30542202661 is an apocalyptic number.

It is an amenable number.

30542202661 is a deficient number, since it is larger than the sum of its proper divisors (1).

30542202661 is an equidigital number, since it uses as much as digits as its factorization.

30542202661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 30542202661 in words is "thirty billion, five hundred forty-two million, two hundred two thousand, six hundred sixty-one".