61600110139 has 2 divisors, whose sum is σ = 61600110140. Its totient is φ = 61600110138.

The previous prime is 61600110109. The next prime is 61600110193. The reversal of 61600110139 is 93101100616.

Together with next prime (61600110193) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61600110139 - 2²⁵ = 61566555707 is a prime.

It is not a weakly prime, because it can be changed into another prime (61600110109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30800055069 + 30800055070.

It is an arithmetic number, because the mean of its divisors is an integer number (30800055070).

Almost surely, 2^61600110139 is an apocalyptic number.

61600110139 is a deficient number, since it is larger than the sum of its proper divisors (1).

61600110139 is an equidigital number, since it uses as much as digits as its factorization.

61600110139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 28.

The spelling of 61600110139 in words is "sixty-one billion, six hundred million, one hundred ten thousand, one hundred thirty-nine".