61144316120 has 32 divisors (see below), whose sum is σ = 140774127120. Its totient is φ = 23888941440.

The previous prime is 61144316113. The next prime is 61144316131. The reversal of 61144316120 is 2161344116.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17772791 + ... + 17776230.

Almost surely, 2^61144316120 is an apocalyptic number.

It is an amenable number.

61144316120 is an abundant number, since it is smaller than the sum of its proper divisors (79629811000).

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

61144316120 is a wasteful number, since it uses less digits than its factorization.

61144316120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35549075 (or 35549071 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

It can be divided in two parts, 6114 and 4316120, that added together give a palindrome (4322234).

The spelling of 61144316120 in words is "sixty-one billion, one hundred forty-four million, three hundred sixteen thousand, one hundred twenty".