61111005049984 has 32 divisors (see below), whose sum is σ = 121747150224000. Its totient is φ = 30554857542912.

The previous prime is 61111005049933. The next prime is 61111005049987. The reversal of 61111005049984 is 48994050011116.

61111005049984 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (61111005049987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1077549 + ... + 11107795.

It is an arithmetic number, because the mean of its divisors is an integer number (3804598444500).

Almost surely, 2^{61111005049984} is an apocalyptic number.

61111005049984 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

61111005049984 is a deficient number, since it is larger than the sum of its proper divisors (60636145174016).

61111005049984 is a wasteful number, since it uses less digits than its factorization.

61111005049984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10077860 (or 10077848 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 49.

The spelling of 61111005049984 in words is "sixty-one trillion, one hundred eleven billion, five million, forty-nine thousand, nine hundred eighty-four".