61245106171 has 2 divisors, whose sum is σ = 61245106172. Its totient is φ = 61245106170.

The previous prime is 61245106133. The next prime is 61245106187. The reversal of 61245106171 is 17160154216.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61245106171 - 2³³ = 52655171579 is a prime.

It is not a weakly prime, because it can be changed into another prime (61245106121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30622553085 + 30622553086.

It is an arithmetic number, because the mean of its divisors is an integer number (30622553086).

Almost surely, 2^61245106171 is an apocalyptic number.

61245106171 is a deficient number, since it is larger than the sum of its proper divisors (1).

61245106171 is an equidigital number, since it uses as much as digits as its factorization.

61245106171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 34.

The spelling of 61245106171 in words is "sixty-one billion, two hundred forty-five million, one hundred six thousand, one hundred seventy-one".