61655112 has 96 divisors (see below), whose sum is σ = 172860480. Its totient is φ = 19843200.

The previous prime is 61655101. The next prime is 61655129. The reversal of 61655112 is 21155616.

It is a happy number.

61655112 is a `hidden beast` number, since 6 + 1 + 655 + 1 + 1 + 2 = 666.

It is a super-4 number, since 4×61655112⁴ (a number of 32 digits) contains 4444 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 408237 + ... + 408387.

It is an arithmetic number, because the mean of its divisors is an integer number (1800630).

Almost surely, 2^61655112 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 61655112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86430240).

61655112 is an abundant number, since it is smaller than the sum of its proper divisors (111205368).

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

61655112 is a wasteful number, since it uses less digits than its factorization.

61655112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323 (or 316 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

The square root of 61655112 is about 7852.0769227001. The cubic root of 61655112 is about 395.0539092154.

The spelling of 61655112 in words is "sixty-one million, six hundred fifty-five thousand, one hundred twelve".