10554121555 has 4 divisors (see below), whose sum is σ = 12664945872. Its totient is φ = 8443297240.

The previous prime is 10554121531. The next prime is 10554121579. The reversal of 10554121555 is 55512145501.

10554121555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55512145501 = 31 ⋅1790714371.

It is an interprime number because it is at equal distance from previous prime (10554121531) and next prime (10554121579).

It is not a de Polignac number, because 10554121555 - 2⁷ = 10554121427 is a prime.

It is a super-2 number, since 2×10554121555² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10554121555.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1055412151 + ... + 1055412160.

It is an arithmetic number, because the mean of its divisors is an integer number (3166236468).

Almost surely, 2^10554121555 is an apocalyptic number.

10554121555 is a deficient number, since it is larger than the sum of its proper divisors (2110824317).

10554121555 is an equidigital number, since it uses as much as digits as its factorization.

10554121555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2110824316.

The product of its (nonzero) digits is 25000, while the sum is 34.

The spelling of 10554121555 in words is "ten billion, five hundred fifty-four million, one hundred twenty-one thousand, five hundred fifty-five".