61055105076 has 192 divisors, whose sum is σ = 182419292160. Its totient is φ = 17298852480.

The previous prime is 61055105057. The next prime is 61055105099. The reversal of 61055105076 is 67050155016.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 61055105076.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 78984226 + ... + 78984998.

It is an arithmetic number, because the mean of its divisors is an integer number (950100480).

Almost surely, 2^61055105076 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61055105076, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91209646080).

61055105076 is an abundant number, since it is smaller than the sum of its proper divisors (121364187084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61055105076 is a wasteful number, since it uses less digits than its factorization.

61055105076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1531 (or 1523 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 36.

The spelling of 61055105076 in words is "sixty-one billion, fifty-five million, one hundred five thousand, seventy-six".