551355161553155 has 16 divisors (see below), whose sum is σ = 675585110723904. Its totient is φ = 431866392675840.

The previous prime is 551355161553121. The next prime is 551355161553169.

551355161553155 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 551355161553155 - 2³² = 551350866585859 is a prime.

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 551355161553155.

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, 5512950311 + ... + 5513050320.

It is an arithmetic number, because the mean of its divisors is an integer number (42224069420244).

Almost surely, 2^{551355161553155} is an apocalyptic number.

551355161553155 is a deficient number, since it is larger than the sum of its proper divisors (124229949170749).

551355161553155 is a wasteful number, since it uses less digits than its factorization.

551355161553155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11026000846.

The product of its digits is 21093750, while the sum is 56.

The spelling of 551355161553155 in words is "five hundred fifty-one trillion, three hundred fifty-five billion, one hundred sixty-one million, five hundred fifty-three thousand, one hundred fifty-five".