61159608 has 96 divisors (see below), whose sum is σ = 181537200. Its totient is φ = 18514944.

The previous prime is 61159601. The next prime is 61159627. The reversal of 61159608 is 80695116.

61159608 is a `hidden beast` number, since 61 + 1 + 596 + 0 + 8 = 666.

61159608 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61159601) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 34635 + ... + 36357.

Almost surely, 2^61159608 is an apocalyptic number.

61159608 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61159608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90768600).

61159608 is an abundant number, since it is smaller than the sum of its proper divisors (120377592).

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

61159608 is a wasteful number, since it uses less digits than its factorization.

61159608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1781 (or 1774 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 61159608 is about 7820.4608559854. The cubic root of 61159608 is about 393.9927506890.

The spelling of 61159608 in words is "sixty-one million, one hundred fifty-nine thousand, six hundred eight".