61016886 has 48 divisors (see below), whose sum is σ = 153957024. Its totient is φ = 17102592.

The previous prime is 61016881. The next prime is 61016909. The reversal of 61016886 is 68861016.

61016886 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 61016886.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61016881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2110 + ... + 11246.

It is an arithmetic number, because the mean of its divisors is an integer number (3207438).

Almost surely, 2^61016886 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61016886, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76978512).

61016886 is an abundant number, since it is smaller than the sum of its proper divisors (92940138).

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

61016886 is a wasteful number, since it uses less digits than its factorization.

61016886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9205 (or 9202 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 61016886 is about 7811.3306164827. The cubic root of 61016886 is about 393.6860382877.

The spelling of 61016886 in words is "sixty-one million, sixteen thousand, eight hundred eighty-six".