61110499999 has 4 divisors (see below), whose sum is σ = 61128304336. Its totient is φ = 61092695664.

The previous prime is 61110499991. The next prime is 61110500021. The reversal of 61110499999 is 99999401116.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61110499999 - 2³ = 61110499991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61110499991) 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, 8897019 + ... + 8903884.

It is an arithmetic number, because the mean of its divisors is an integer number (15282076084).

Almost surely, 2^61110499999 is an apocalyptic number.

61110499999 is a deficient number, since it is larger than the sum of its proper divisors (17804337).

61110499999 is a wasteful number, since it uses less digits than its factorization.

61110499999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17804336.

The product of its (nonzero) digits is 1417176, while the sum is 58.

The spelling of 61110499999 in words is "sixty-one billion, one hundred ten million, four hundred ninety-nine thousand, nine hundred ninety-nine".