61310550611 has 2 divisors, whose sum is σ = 61310550612. Its totient is φ = 61310550610.

The previous prime is 61310550589. The next prime is 61310550617. The reversal of 61310550611 is 11605501316.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61310550611 is a prime.

It is not a weakly prime, because it can be changed into another prime (61310550617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30655275305 + 30655275306.

It is an arithmetic number, because the mean of its divisors is an integer number (30655275306).

Almost surely, 2^61310550611 is an apocalyptic number.

61310550611 is a deficient number, since it is larger than the sum of its proper divisors (1).

61310550611 is an equidigital number, since it uses as much as digits as its factorization.

61310550611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 29.

The spelling of 61310550611 in words is "sixty-one billion, three hundred ten million, five hundred fifty thousand, six hundred eleven".