61105444230 has 32 divisors (see below), whose sum is σ = 149420109024. Its totient is φ = 15987335936.

The previous prime is 61105444219. The next prime is 61105444243. The reversal of 61105444230 is 3244450116.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19213959 + ... + 19217138.

It is an arithmetic number, because the mean of its divisors is an integer number (4669378407).

Almost surely, 2^61105444230 is an apocalyptic number.

61105444230 is an abundant number, since it is smaller than the sum of its proper divisors (88314664794).

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

61105444230 is a wasteful number, since it uses less digits than its factorization.

61105444230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38431160.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 61105444230 its reverse (3244450116), we get a palindrome (64349894346).

The spelling of 61105444230 in words is "sixty-one billion, one hundred five million, four hundred forty-four thousand, two hundred thirty".