545654121555 has 32 divisors (see below), whose sum is σ = 886562284608. Its totient is φ = 286542144000.

The previous prime is 545654121517. The next prime is 545654121581. The reversal of 545654121555 is 555121456545.

It is not a de Polignac number, because 545654121555 - 2²⁴ = 545637344339 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 720724 + ... + 1269153.

It is an arithmetic number, because the mean of its divisors is an integer number (27705071394).

Almost surely, 2^545654121555 is an apocalyptic number.

545654121555 is a deficient number, since it is larger than the sum of its proper divisors (340908163053).

545654121555 is a wasteful number, since it uses less digits than its factorization.

545654121555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1990167.

The product of its digits is 3000000, while the sum is 48.

The spelling of 545654121555 in words is "five hundred forty-five billion, six hundred fifty-four million, one hundred twenty-one thousand, five hundred fifty-five".