61201641541 has 2 divisors, whose sum is σ = 61201641542. Its totient is φ = 61201641540.

The previous prime is 61201641439. The next prime is 61201641559. The reversal of 61201641541 is 14514610216.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53567250916 + 7634390625 = 231446^2 + 87375^2 .

It is a cyclic number.

It is not a de Polignac number, because 61201641541 - 2⁹ = 61201641029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61201641341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30600820770 + 30600820771.

It is an arithmetic number, because the mean of its divisors is an integer number (30600820771).

Almost surely, 2^61201641541 is an apocalyptic number.

It is an amenable number.

61201641541 is a deficient number, since it is larger than the sum of its proper divisors (1).

61201641541 is an equidigital number, since it uses as much as digits as its factorization.

61201641541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 31.

The spelling of 61201641541 in words is "sixty-one billion, two hundred one million, six hundred forty-one thousand, five hundred forty-one".