61105099994 has 48 divisors (see below), whose sum is σ = 97045288704. Its totient is φ = 28851108000.

The previous prime is 61105099987. The next prime is 61105099997. The reversal of 61105099994 is 49999050116.

It is not an unprimeable number, because it can be changed into a prime (61105099997) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 46967144 + ... + 46968444.

It is an arithmetic number, because the mean of its divisors is an integer number (2021776848).

Almost surely, 2^61105099994 is an apocalyptic number.

61105099994 is a deficient number, since it is larger than the sum of its proper divisors (35940188710).

61105099994 is a wasteful number, since it uses less digits than its factorization.

61105099994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1883 (or 1860 counting only the distinct ones).

The product of its (nonzero) digits is 787320, while the sum is 53.

The spelling of 61105099994 in words is "sixty-one billion, one hundred five million, ninety-nine thousand, nine hundred ninety-four".