61071081518133 has 16 divisors (see below), whose sum is σ = 92682400137600. Its totient is φ = 39721028628960.

The previous prime is 61071081518123. The next prime is 61071081518177. The reversal of 61071081518133 is 33181518017016.

61071081518133 is a `hidden beast` number, since 6 + 10 + 7 + 10 + 81 + 518 + 1 + 33 = 666.

It is not a de Polignac number, because 61071081518133 - 2¹⁰ = 61071081517109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61071081518123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27584046553 + ... + 27584048766.

It is an arithmetic number, because the mean of its divisors is an integer number (5792650008600).

Almost surely, 2^{61071081518133} is an apocalyptic number.

It is an amenable number.

61071081518133 is a deficient number, since it is larger than the sum of its proper divisors (31611318619467).

61071081518133 is a wasteful number, since it uses less digits than its factorization.

61071081518133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55168095369 (or 55168095363 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 45.

The spelling of 61071081518133 in words is "sixty-one trillion, seventy-one billion, eighty-one million, five hundred eighteen thousand, one hundred thirty-three".