616434011531537 has 2 divisors, whose sum is σ = 616434011531538. Its totient is φ = 616434011531536.

The previous prime is 616434011531453. The next prime is 616434011531593. The reversal of 616434011531537 is 735135110434616.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 491393667094801 + 125040344436736 = 22167401^2 + 11182144^2 .

It is a cyclic number.

It is not a de Polignac number, because 616434011531537 - 2¹² = 616434011527441 is a prime.

It is not a weakly prime, because it can be changed into another prime (616434011531237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308217005765768 + 308217005765769.

It is an arithmetic number, because the mean of its divisors is an integer number (308217005765769).

Almost surely, 2^{616434011531537} is an apocalyptic number.

It is an amenable number.

616434011531537 is a deficient number, since it is larger than the sum of its proper divisors (1).

616434011531537 is an equidigital number, since it uses as much as digits as its factorization.

616434011531537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2721600, while the sum is 50.

The spelling of 616434011531537 in words is "six hundred sixteen trillion, four hundred thirty-four billion, eleven million, five hundred thirty-one thousand, five hundred thirty-seven".