553218461408857 has 8 divisors (see below), whose sum is σ = 553640691382632. Its totient is φ = 552796254566400.

The previous prime is 553218461408759. The next prime is 553218461408929. The reversal of 553218461408857 is 758804164812355.

It can be written as a sum of positive squares in 4 ways, for example, as 80668078734681 + 472550382674176 = 8981541^2 + 21738224^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 553218461408857 - 2²³ = 553218453020249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 553218461408792 and 553218461408801.

It is not an unprimeable number, because it can be changed into a prime (553218461408257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42220257 + ... + 53749297.

It is an arithmetic number, because the mean of its divisors is an integer number (69205086422829).

Almost surely, 2^{553218461408857} is an apocalyptic number.

It is an amenable number.

553218461408857 is a deficient number, since it is larger than the sum of its proper divisors (422229973775).

553218461408857 is a wasteful number, since it uses less digits than its factorization.

553218461408857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11565659.

The product of its (nonzero) digits is 258048000, while the sum is 67.

The spelling of 553218461408857 in words is "five hundred fifty-three trillion, two hundred eighteen billion, four hundred sixty-one million, four hundred eight thousand, eight hundred fifty-seven".