61066160 has 80 divisors (see below), whose sum is σ = 147312000. Its totient is φ = 23528448.

The previous prime is 61066153. The next prime is 61066163. The reversal of 61066160 is 6166016.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (61066163) 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, 409766 + ... + 409914.

It is an arithmetic number, because the mean of its divisors is an integer number (1841400).

Almost surely, 2^61066160 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 61066160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73656000).

61066160 is an abundant number, since it is smaller than the sum of its proper divisors (86245840).

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

61066160 is a wasteful number, since it uses less digits than its factorization.

61066160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 312 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 61066160 is about 7814.4839880826. The cubic root of 61066160 is about 393.7919830938.

The spelling of 61066160 in words is "sixty-one million, sixty-six thousand, one hundred sixty".