61061059868944 has 20 divisors (see below), whose sum is σ = 119156924388880. Its totient is φ = 30310885833120.

The previous prime is 61061059868933. The next prime is 61061059868947. The reversal of 61061059868944 is 44986895016016.

It is a self number, because there is not a number n which added to its sum of digits gives 61061059868944.

It is not an unprimeable number, because it can be changed into a prime (61061059868947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13727754042 + ... + 13727758489.

It is an arithmetic number, because the mean of its divisors is an integer number (5957846219444).

Almost surely, 2^{61061059868944} is an apocalyptic number.

It is an amenable number.

61061059868944 is a deficient number, since it is larger than the sum of its proper divisors (58095864519936).

61061059868944 is a wasteful number, since it uses less digits than its factorization.

61061059868944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27455512678 (or 27455512672 counting only the distinct ones).

The product of its (nonzero) digits is 89579520, while the sum is 67.

The spelling of 61061059868944 in words is "sixty-one trillion, sixty-one billion, fifty-nine million, eight hundred sixty-eight thousand, nine hundred forty-four".