61106420339 has 2 divisors, whose sum is σ = 61106420340. Its totient is φ = 61106420338.

The previous prime is 61106420329. The next prime is 61106420359. The reversal of 61106420339 is 93302460116.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61106420339 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61106420299 and 61106420308.

It is not a weakly prime, because it can be changed into another prime (61106420329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30553210169 + 30553210170.

It is an arithmetic number, because the mean of its divisors is an integer number (30553210170).

Almost surely, 2^61106420339 is an apocalyptic number.

61106420339 is a deficient number, since it is larger than the sum of its proper divisors (1).

61106420339 is an equidigital number, since it uses as much as digits as its factorization.

61106420339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 35.

The spelling of 61106420339 in words is "sixty-one billion, one hundred six million, four hundred twenty thousand, three hundred thirty-nine".