61608880 has 20 divisors (see below), whose sum is σ = 143240832. Its totient is φ = 24643520.

The previous prime is 61608863. The next prime is 61608893. The reversal of 61608880 is 8880616.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 384976 + ... + 385135.

Almost surely, 2^61608880 is an apocalyptic number.

It is an amenable number.

61608880 is an abundant number, since it is smaller than the sum of its proper divisors (81631952).

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

61608880 is a wasteful number, since it uses less digits than its factorization.

61608880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770124 (or 770118 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 37.

The square root of 61608880 is about 7849.1324361359. The cubic root of 61608880 is about 394.9551409827.

The spelling of 61608880 in words is "sixty-one million, six hundred eight thousand, eight hundred eighty".