61121044055 has 8 divisors (see below), whose sum is σ = 73384974432. Its totient is φ = 48870354208.

The previous prime is 61121044021. The next prime is 61121044111. The reversal of 61121044055 is 55044012116.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61121044055 - 2⁸ = 61121043799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3299972 + ... + 3318441.

It is an arithmetic number, because the mean of its divisors is an integer number (9173121804).

Almost surely, 2^61121044055 is an apocalyptic number.

61121044055 is a deficient number, since it is larger than the sum of its proper divisors (12263930377).

61121044055 is a wasteful number, since it uses less digits than its factorization.

61121044055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6620265.

The product of its (nonzero) digits is 4800, while the sum is 29.

The spelling of 61121044055 in words is "sixty-one billion, one hundred twenty-one million, forty-four thousand, fifty-five".