2055553555645 has 16 divisors (see below), whose sum is σ = 2519572366080. Its totient is φ = 1609182608704.

The previous prime is 2055553555637. The next prime is 2055553555651. The reversal of 2055553555645 is 5465553555502.

It is a cyclic number.

It is not a de Polignac number, because 2055553555645 - 2³ = 2055553555637 is a prime.

It is a super-2 number, since 2×2055553555645² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 659259 + ... + 2132071.

It is an arithmetic number, because the mean of its divisors is an integer number (157473272880).

Almost surely, 2^{2055553555645} is an apocalyptic number.

It is an amenable number.

2055553555645 is a deficient number, since it is larger than the sum of its proper divisors (464018810435).

2055553555645 is a wasteful number, since it uses less digits than its factorization.

2055553555645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1478804.

The product of its (nonzero) digits is 56250000, while the sum is 55.

The spelling of 2055553555645 in words is "two trillion, fifty-five billion, five hundred fifty-three million, five hundred fifty-five thousand, six hundred forty-five".