618557082256 has 45 divisors (see below), whose sum is σ = 1204020629371. Its totient is φ = 307848713216.

The previous prime is 618557082203. The next prime is 618557082259. The reversal of 618557082256 is 652280755816.

The square root of 618557082256 is 786484.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 185171859856 + 433385222400 = 430316^2 + 658320^2 .

It is a super-2 number, since 2×618557082256² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 618557082197 and 618557082206.

It is not an unprimeable number, because it can be changed into a prime (618557082259) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1110515130 + ... + 1110515686.

Almost surely, 2^618557082256 is an apocalyptic number.

618557082256 is the 786484-th square number.

It is an amenable number.

618557082256 is a deficient number, since it is larger than the sum of its proper divisors (585463547115).

618557082256 is an frugal number, since it uses more digits than its factorization.

618557082256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1828 (or 912 counting only the distinct ones).

The product of its (nonzero) digits is 8064000, while the sum is 55.

The spelling of 618557082256 in words is "six hundred eighteen billion, five hundred fifty-seven million, eighty-two thousand, two hundred fifty-six".