61822816 has 24 divisors (see below), whose sum is σ = 132779304. Its totient is φ = 28101120.

The previous prime is 61822811. The next prime is 61822823.

61822816 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61822811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87465 + ... + 88168.

It is an arithmetic number, because the mean of its divisors is an integer number (5532471).

Almost surely, 2^61822816 is an apocalyptic number.

It is an amenable number.

61822816 is an abundant number, since it is smaller than the sum of its proper divisors (70956488).

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

61822816 is a wasteful number, since it uses less digits than its factorization.

61822816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175654 (or 175646 counting only the distinct ones).

The product of its digits is 9216, while the sum is 34.

The square root of 61822816 is about 7862.7486288193. The cubic root of 61822816 is about 395.4117716316.

It can be divided in two parts, 6182 and 2816, that added together give a palindrome (8998).

The spelling of 61822816 in words is "sixty-one million, eight hundred twenty-two thousand, eight hundred sixteen".