61552655141 has 2 divisors, whose sum is σ = 61552655142. Its totient is φ = 61552655140.

The previous prime is 61552655083. The next prime is 61552655173. The reversal of 61552655141 is 14155625516.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44880422500 + 16672232641 = 211850^2 + 129121^2 .

It is a cyclic number.

It is not a de Polignac number, because 61552655141 - 2¹⁸ = 61552392997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61552655041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30776327570 + 30776327571.

It is an arithmetic number, because the mean of its divisors is an integer number (30776327571).

Almost surely, 2^61552655141 is an apocalyptic number.

It is an amenable number.

61552655141 is a deficient number, since it is larger than the sum of its proper divisors (1).

61552655141 is an equidigital number, since it uses as much as digits as its factorization.

61552655141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 180000, while the sum is 41.

The spelling of 61552655141 in words is "sixty-one billion, five hundred fifty-two million, six hundred fifty-five thousand, one hundred forty-one".