61168619113 has 4 divisors (see below), whose sum is σ = 69906993280. Its totient is φ = 52430244948.

The previous prime is 61168619111. The next prime is 61168619129. The reversal of 61168619113 is 31191686116.

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 61168619113 - 2¹ = 61168619111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61168619113.

It is not an unprimeable number, because it can be changed into a prime (61168619111) 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, 4369187073 + ... + 4369187086.

It is an arithmetic number, because the mean of its divisors is an integer number (17476748320).

Almost surely, 2^61168619113 is an apocalyptic number.

It is an amenable number.

61168619113 is a deficient number, since it is larger than the sum of its proper divisors (8738374167).

61168619113 is an equidigital number, since it uses as much as digits as its factorization.

61168619113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8738374166.

The product of its digits is 46656, while the sum is 43.

The spelling of 61168619113 in words is "sixty-one billion, one hundred sixty-eight million, six hundred nineteen thousand, one hundred thirteen".