61044663 has 16 divisors (see below), whose sum is σ = 86054400. Its totient is φ = 38384640.

The previous prime is 61044661. The next prime is 61044727. The reversal of 61044663 is 36644016.

It is not a de Polignac number, because 61044663 - 2¹ = 61044661 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61044663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61044661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11383 + ... + 15863.

It is an arithmetic number, because the mean of its divisors is an integer number (5378400).

Almost surely, 2^61044663 is an apocalyptic number.

61044663 is a deficient number, since it is larger than the sum of its proper divisors (25009737).

61044663 is a wasteful number, since it uses less digits than its factorization.

61044663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4742.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 61044663 is about 7813.1084083097. The cubic root of 61044663 is about 393.7457690651.

Adding to 61044663 its reverse (36644016), we get a palindrome (97688679).

The spelling of 61044663 in words is "sixty-one million, forty-four thousand, six hundred sixty-three".