61162663 has 4 divisors (see below), whose sum is σ = 61178320. Its totient is φ = 61147008.

The previous prime is 61162649. The next prime is 61162679. The reversal of 61162663 is 36626116.

61162663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 61162663 - 2⁹ = 61162151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61162603) 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 3 ways as a sum of consecutive naturals, for example, 3406 + ... + 11572.

It is an arithmetic number, because the mean of its divisors is an integer number (15294580).

Almost surely, 2^61162663 is an apocalyptic number.

61162663 is a deficient number, since it is larger than the sum of its proper divisors (15657).

61162663 is an equidigital number, since it uses as much as digits as its factorization.

61162663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15656.

The product of its digits is 7776, while the sum is 31.

The square root of 61162663 is about 7820.6561745163. The cubic root of 61162663 is about 393.9993107257. Note that the first 3 decimals are identical.

Adding to 61162663 its reverse (36626116), we get a palindrome (97788779).

The spelling of 61162663 in words is "sixty-one million, one hundred sixty-two thousand, six hundred sixty-three".