61216760 has 48 divisors (see below), whose sum is σ = 150663240. Its totient is φ = 22200960.

The previous prime is 61216751. The next prime is 61216763. The reversal of 61216760 is 6761216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61216763) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 163934 + ... + 164306.

Almost surely, 2^61216760 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 61216760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75331620).

61216760 is an abundant number, since it is smaller than the sum of its proper divisors (89446480).

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

61216760 is a wasteful number, since it uses less digits than its factorization.

61216760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768 (or 391 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 61216760 is about 7824.1140073493. The cubic root of 61216760 is about 394.1154376719.

Adding to 61216760 its reverse (6761216), we get a palindrome (67977976).

The spelling of 61216760 in words is "sixty-one million, two hundred sixteen thousand, seven hundred sixty".