61622005576171 has 2 divisors, whose sum is σ = 61622005576172. Its totient is φ = 61622005576170.

The previous prime is 61622005576147. The next prime is 61622005576223. The reversal of 61622005576171 is 17167550022616.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61622005576171 - 2⁹ = 61622005575659 is a prime.

It is not a weakly prime, because it can be changed into another prime (61622005576121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30811002788085 + 30811002788086.

It is an arithmetic number, because the mean of its divisors is an integer number (30811002788086).

Almost surely, 2^{61622005576171} is an apocalyptic number.

61622005576171 is a deficient number, since it is larger than the sum of its proper divisors (1).

61622005576171 is an equidigital number, since it uses as much as digits as its factorization.

61622005576171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1058400, while the sum is 49.

Adding to 61622005576171 its reverse (17167550022616), we get a palindrome (78789555598787).

The spelling of 61622005576171 in words is "sixty-one trillion, six hundred twenty-two billion, five million, five hundred seventy-six thousand, one hundred seventy-one".