616151642331091 has 2 divisors, whose sum is σ = 616151642331092. Its totient is φ = 616151642331090.

The previous prime is 616151642331011. The next prime is 616151642331103. The reversal of 616151642331091 is 190133246151616.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 616151642331091 - 2²¹ = 616151640233939 is a prime.

It is not a weakly prime, because it can be changed into another prime (616151642331011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308075821165545 + 308075821165546.

It is an arithmetic number, because the mean of its divisors is an integer number (308075821165546).

Almost surely, 2^{616151642331091} is an apocalyptic number.

616151642331091 is a deficient number, since it is larger than the sum of its proper divisors (1).

616151642331091 is an equidigital number, since it uses as much as digits as its factorization.

616151642331091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 699840, while the sum is 49.

The spelling of 616151642331091 in words is "six hundred sixteen trillion, one hundred fifty-one billion, six hundred forty-two million, three hundred thirty-one thousand, ninety-one".