554661166455 has 64 divisors (see below), whose sum is σ = 1090857507840. Its totient is φ = 265138876800.

The previous prime is 554661166439. The next prime is 554661166459.

554661166455 is a `hidden beast` number, since 5 + 5 + 466 + 116 + 64 + 5 + 5 = 666.

554661166455 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 554661166455 - 2⁴ = 554661166439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (554661166459) 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 63 ways as a sum of consecutive naturals, for example, 2524912 + ... + 2735781.

It is an arithmetic number, because the mean of its divisors is an integer number (17044648560).

Almost surely, 2^554661166455 is an apocalyptic number.

554661166455 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

554661166455 is a deficient number, since it is larger than the sum of its proper divisors (536196341385).

554661166455 is a wasteful number, since it uses less digits than its factorization.

554661166455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5260789 (or 5260783 counting only the distinct ones).

The product of its digits is 12960000, while the sum is 54.

The spelling of 554661166455 in words is "five hundred fifty-four billion, six hundred sixty-one million, one hundred sixty-six thousand, four hundred fifty-five".