616223430091 has 2 divisors, whose sum is σ = 616223430092. Its totient is φ = 616223430090.

The previous prime is 616223430079. The next prime is 616223430107. The reversal of 616223430091 is 190034322616.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 616223430091 - 2¹¹ = 616223428043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 616223430091.

It is not a weakly prime, because it can be changed into another prime (616223430791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308111715045 + 308111715046.

It is an arithmetic number, because the mean of its divisors is an integer number (308111715046).

Almost surely, 2^616223430091 is an apocalyptic number.

616223430091 is a deficient number, since it is larger than the sum of its proper divisors (1).

616223430091 is an equidigital number, since it uses as much as digits as its factorization.

616223430091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 37.

The spelling of 616223430091 in words is "six hundred sixteen billion, two hundred twenty-three million, four hundred thirty thousand, ninety-one".