6101561616149 has 2 divisors, whose sum is σ = 6101561616150. Its totient is φ = 6101561616148.

The previous prime is 6101561616113. The next prime is 6101561616191. The reversal of 6101561616149 is 9416161651016.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6100949400100 + 612216049 = 2470010^2 + 24743^2 .

It is a cyclic number.

It is not a de Polignac number, because 6101561616149 - 2⁸ = 6101561615893 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6101561616109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3050780808074 + 3050780808075.

It is an arithmetic number, because the mean of its divisors is an integer number (3050780808075).

Almost surely, 2^{6101561616149} is an apocalyptic number.

It is an amenable number.

6101561616149 is a deficient number, since it is larger than the sum of its proper divisors (1).

6101561616149 is an equidigital number, since it uses as much as digits as its factorization.

6101561616149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 47.

The spelling of 6101561616149 in words is "six trillion, one hundred one billion, five hundred sixty-one million, six hundred sixteen thousand, one hundred forty-nine".