61111646203 has 2 divisors, whose sum is σ = 61111646204. Its totient is φ = 61111646202.

The previous prime is 61111646201. The next prime is 61111646213. The reversal of 61111646203 is 30264611116.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61111646203 - 2¹ = 61111646201 is a prime.

Together with 61111646201, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (61111646201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30555823101 + 30555823102.

It is an arithmetic number, because the mean of its divisors is an integer number (30555823102).

Almost surely, 2^61111646203 is an apocalyptic number.

61111646203 is a deficient number, since it is larger than the sum of its proper divisors (1).

61111646203 is an equidigital number, since it uses as much as digits as its factorization.

61111646203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The spelling of 61111646203 in words is "sixty-one billion, one hundred eleven million, six hundred forty-six thousand, two hundred three".