675818655553 has 8 divisors (see below), whose sum is σ = 694094383080. Its totient is φ = 657543473280.

The previous prime is 675818655529. The next prime is 675818655581. The reversal of 675818655553 is 355556818576.

It can be written as a sum of positive squares in 4 ways, for example, as 103302459649 + 572516195904 = 321407^2 + 756648^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-675818655553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (675818665553) 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, 4313493 + ... + 4467421.

It is an arithmetic number, because the mean of its divisors is an integer number (86761797885).

Almost surely, 2^675818655553 is an apocalyptic number.

It is an amenable number.

675818655553 is a deficient number, since it is larger than the sum of its proper divisors (18275727527).

675818655553 is a wasteful number, since it uses less digits than its factorization.

675818655553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272627.

The product of its digits is 151200000, while the sum is 64.

The spelling of 675818655553 in words is "six hundred seventy-five billion, eight hundred eighteen million, six hundred fifty-five thousand, five hundred fifty-three".