61145564445341 has 2 divisors, whose sum is σ = 61145564445342. Its totient is φ = 61145564445340.

The previous prime is 61145564445337. The next prime is 61145564445373. The reversal of 61145564445341 is 14354446554116.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45303803256100 + 15841761189241 = 6730810^2 + 3980171^2 .

It is a cyclic number.

It is not a de Polignac number, because 61145564445341 - 2² = 61145564445337 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61145564445331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30572782222670 + 30572782222671.

It is an arithmetic number, because the mean of its divisors is an integer number (30572782222671).

Almost surely, 2^{61145564445341} is an apocalyptic number.

It is an amenable number.

61145564445341 is a deficient number, since it is larger than the sum of its proper divisors (1).

61145564445341 is an equidigital number, since it uses as much as digits as its factorization.

61145564445341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824000, while the sum is 53.

The spelling of 61145564445341 in words is "sixty-one trillion, one hundred forty-five billion, five hundred sixty-four million, four hundred forty-five thousand, three hundred forty-one".