61002160061 has 2 divisors, whose sum is σ = 61002160062. Its totient is φ = 61002160060.

The previous prime is 61002160031. The next prime is 61002160169. The reversal of 61002160061 is 16006120016.

61002160061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34597860025 + 26404300036 = 186005^2 + 162494^2 .

It is a cyclic number.

It is not a de Polignac number, because 61002160061 - 2⁶ = 61002159997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61002160031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30501080030 + 30501080031.

It is an arithmetic number, because the mean of its divisors is an integer number (30501080031).

Almost surely, 2^61002160061 is an apocalyptic number.

It is an amenable number.

61002160061 is a deficient number, since it is larger than the sum of its proper divisors (1).

61002160061 is an equidigital number, since it uses as much as digits as its factorization.

61002160061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 61002160061 its reverse (16006120016), we get a palindrome (77008280077).

The spelling of 61002160061 in words is "sixty-one billion, two million, one hundred sixty thousand, sixty-one".