61613440233 has 16 divisors (see below), whose sum is σ = 82250952576. Its totient is φ = 41025813120.

The previous prime is 61613440201. The next prime is 61613440237. The reversal of 61613440233 is 33204431616.

It is not a de Polignac number, because 61613440233 - 2⁵ = 61613440201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61613440194 and 61613440203.

It is not an unprimeable number, because it can be changed into a prime (61613440237) 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, 15624060 + ... + 15628002.

It is an arithmetic number, because the mean of its divisors is an integer number (5140684536).

Almost surely, 2^61613440233 is an apocalyptic number.

It is an amenable number.

61613440233 is a deficient number, since it is larger than the sum of its proper divisors (20637512343).

61613440233 is a wasteful number, since it uses less digits than its factorization.

61613440233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8944.

The product of its (nonzero) digits is 31104, while the sum is 33.

Adding to 61613440233 its reverse (33204431616), we get a palindrome (94817871849).

The spelling of 61613440233 in words is "sixty-one billion, six hundred thirteen million, four hundred forty thousand, two hundred thirty-three".