55645755754655 has 16 divisors (see below), whose sum is σ = 76012542249984. Its totient is φ = 38710090958880.

The previous prime is 55645755754643. The next prime is 55645755754663.

55645755754655 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55645755754655 - 2⁸ = 55645755754399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 21994368599 + ... + 21994371128.

It is an arithmetic number, because the mean of its divisors is an integer number (4750783890624).

Almost surely, 2^{55645755754655} is an apocalyptic number.

55645755754655 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55645755754655 is a deficient number, since it is larger than the sum of its proper divisors (20366786495329).

55645755754655 is a wasteful number, since it uses less digits than its factorization.

55645755754655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43988739766.

The product of its digits is 11025000000, while the sum is 74.

The spelling of 55645755754655 in words is "fifty-five trillion, six hundred forty-five billion, seven hundred fifty-five million, seven hundred fifty-four thousand, six hundred fifty-five".