61676144 has 20 divisors (see below), whose sum is σ = 120070440. Its totient is φ = 30690240.

The previous prime is 61676137. The next prime is 61676159. The reversal of 61676144 is 44167616.

61676144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 5759 + ... + 12510.

It is an arithmetic number, because the mean of its divisors is an integer number (6003522).

Almost surely, 2^61676144 is an apocalyptic number.

It is an amenable number.

61676144 is a deficient number, since it is larger than the sum of its proper divisors (58394296).

61676144 is a wasteful number, since it uses less digits than its factorization.

61676144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18488 (or 18482 counting only the distinct ones).

The product of its digits is 24192, while the sum is 35.

The square root of 61676144 is about 7853.4160720033. The cubic root of 61676144 is about 395.0988248164.

The spelling of 61676144 in words is "sixty-one million, six hundred seventy-six thousand, one hundred forty-four".