61061005505111 has 24 divisors (see below), whose sum is σ = 62202672892800. Its totient is φ = 59939087616000.

The previous prime is 61061005505099. The next prime is 61061005505161. The reversal of 61061005505111 is 11150550016016.

It is a de Polignac number, because none of the positive numbers 2^k-61061005505111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61061005505161) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2312991290 + ... + 2313017688.

It is an arithmetic number, because the mean of its divisors is an integer number (2591778037200).

Almost surely, 2^{61061005505111} is an apocalyptic number.

61061005505111 is a deficient number, since it is larger than the sum of its proper divisors (1141667387689).

61061005505111 is a wasteful number, since it uses less digits than its factorization.

61061005505111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28587 (or 28514 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 32.

The spelling of 61061005505111 in words is "sixty-one trillion, sixty-one billion, five million, five hundred five thousand, one hundred eleven".