55439691966751 has 8 divisors (see below), whose sum is σ = 56436173225264. Its totient is φ = 54446037606720.

The previous prime is 55439691966749. The next prime is 55439691966781. The reversal of 55439691966751 is 15766919693455.

55439691966751 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 55439691966751 - 2¹ = 55439691966749 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 (55439691966781) 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 7 ways as a sum of consecutive naturals, for example, 706685046 + ... + 706763491.

It is an arithmetic number, because the mean of its divisors is an integer number (7054521653158).

Almost surely, 2^{55439691966751} is an apocalyptic number.

55439691966751 is a deficient number, since it is larger than the sum of its proper divisors (996481258513).

55439691966751 is a wasteful number, since it uses less digits than its factorization.

55439691966751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1413449241.

The product of its digits is 1653372000, while the sum is 76.

The spelling of 55439691966751 in words is "fifty-five trillion, four hundred thirty-nine billion, six hundred ninety-one million, nine hundred sixty-six thousand, seven hundred fifty-one".