55616722786 has 8 divisors (see below), whose sum is σ = 87052261824. Its totient is φ = 26599302180.

The previous prime is 55616722757. The next prime is 55616722789. The reversal of 55616722786 is 68722761655.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (55616722789) 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 3 ways as a sum of consecutive naturals, for example, 604529550 + ... + 604529641.

It is an arithmetic number, because the mean of its divisors is an integer number (10881532728).

Almost surely, 2^55616722786 is an apocalyptic number.

55616722786 is a deficient number, since it is larger than the sum of its proper divisors (31435539038).

55616722786 is a wasteful number, since it uses less digits than its factorization.

55616722786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209059216.

The product of its digits is 8467200, while the sum is 55.

The spelling of 55616722786 in words is "fifty-five billion, six hundred sixteen million, seven hundred twenty-two thousand, seven hundred eighty-six".