61804160 has 64 divisors (see below), whose sum is σ = 161200800. Its totient is φ = 22471680.

The previous prime is 61804153. The next prime is 61804187. The reversal of 61804160 is 6140816.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2651 + ... + 11429.

Almost surely, 2^61804160 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 61804160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80600400).

61804160 is an abundant number, since it is smaller than the sum of its proper divisors (99396640).

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

61804160 is a wasteful number, since it uses less digits than its factorization.

61804160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8809 (or 8797 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 61804160 is about 7861.5621857236. The cubic root of 61804160 is about 395.3719937382.

Adding to 61804160 its reverse (6140816), we get a palindrome (67944976).

The spelling of 61804160 in words is "sixty-one million, eight hundred four thousand, one hundred sixty".