55776144167755 has 24 divisors (see below), whose sum is σ = 77441258034000. Its totient is φ = 38429496452160.

The previous prime is 55776144167743. The next prime is 55776144167789.

55776144167755 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55776144167755 - 2³⁹ = 55226388353867 is a prime.

It is a super-2 number, since 2×55776144167755² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2426093080 + ... + 2426116069.

It is an arithmetic number, because the mean of its divisors is an integer number (3226719084750).

Almost surely, 2^{55776144167755} is an apocalyptic number.

55776144167755 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55776144167755 is a deficient number, since it is larger than the sum of its proper divisors (21665113866245).

55776144167755 is a wasteful number, since it uses less digits than its factorization.

55776144167755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4852209195 (or 4852209184 counting only the distinct ones).

The product of its digits is 864360000, while the sum is 70.

The spelling of 55776144167755 in words is "fifty-five trillion, seven hundred seventy-six billion, one hundred forty-four million, one hundred sixty-seven thousand, seven hundred fifty-five".