61166433113 has 4 divisors (see below), whose sum is σ = 61940691840. Its totient is φ = 60392174388.

The previous prime is 61166433103. The next prime is 61166433131. The reversal of 61166433113 is 31133466116.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61166433113 - 2⁸ = 61166432857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61166433103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 387129245 + ... + 387129402.

It is an arithmetic number, because the mean of its divisors is an integer number (15485172960).

Almost surely, 2^61166433113 is an apocalyptic number.

It is an amenable number.

61166433113 is a deficient number, since it is larger than the sum of its proper divisors (774258727).

61166433113 is an equidigital number, since it uses as much as digits as its factorization.

61166433113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774258726.

The product of its digits is 23328, while the sum is 35.

Adding to 61166433113 its reverse (31133466116), we get a palindrome (92299899229).

The spelling of 61166433113 in words is "sixty-one billion, one hundred sixty-six million, four hundred thirty-three thousand, one hundred thirteen".