61116370748401 has 2 divisors, whose sum is σ = 61116370748402. Its totient is φ = 61116370748400.

The previous prime is 61116370748201. The next prime is 61116370748417. The reversal of 61116370748401 is 10484707361116.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42548889748401 + 18567481000000 = 6522951^2 + 4309000^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61116370748401 is a prime.

It is not a weakly prime, because it can be changed into another prime (61116370748201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30558185374200 + 30558185374201.

It is an arithmetic number, because the mean of its divisors is an integer number (30558185374201).

Almost surely, 2^{61116370748401} is an apocalyptic number.

It is an amenable number.

61116370748401 is a deficient number, since it is larger than the sum of its proper divisors (1).

61116370748401 is an equidigital number, since it uses as much as digits as its factorization.

61116370748401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 677376, while the sum is 49.

The spelling of 61116370748401 in words is "sixty-one trillion, one hundred sixteen billion, three hundred seventy million, seven hundred forty-eight thousand, four hundred one".