542366220637 has 2 divisors, whose sum is σ = 542366220638. Its totient is φ = 542366220636.

The previous prime is 542366220629. The next prime is 542366220743. The reversal of 542366220637 is 736022663245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 448570420516 + 93795800121 = 669754^2 + 306261^2 .

It is a cyclic number.

It is not a de Polignac number, because 542366220637 - 2³ = 542366220629 is a prime.

It is a super-3 number, since 3×542366220637³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542366220037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271183110318 + 271183110319.

It is an arithmetic number, because the mean of its divisors is an integer number (271183110319).

Almost surely, 2^542366220637 is an apocalyptic number.

It is an amenable number.

542366220637 is a deficient number, since it is larger than the sum of its proper divisors (1).

542366220637 is an equidigital number, since it uses as much as digits as its factorization.

542366220637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2177280, while the sum is 46.

The spelling of 542366220637 in words is "five hundred forty-two billion, three hundred sixty-six million, two hundred twenty thousand, six hundred thirty-seven".