61004215360 has 112 divisors (see below), whose sum is σ = 158620309632. Its totient is φ = 22162636800.

The previous prime is 61004215319. The next prime is 61004215373. The reversal of 61004215360 is 6351240016.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4051045 + ... + 4066075.

Almost surely, 2^61004215360 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 61004215360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79310154816).

61004215360 is an abundant number, since it is smaller than the sum of its proper divisors (97616094272).

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

61004215360 is a wasteful number, since it uses less digits than its factorization.

61004215360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16212 (or 16202 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 61004215360 its reverse (6351240016), we get a palindrome (67355455376).

The spelling of 61004215360 in words is "sixty-one billion, four million, two hundred fifteen thousand, three hundred sixty".