1020436603255 has 16 divisors (see below), whose sum is σ = 1289476954080. Its totient is φ = 773080889472.

The previous prime is 1020436603229. The next prime is 1020436603261. The reversal of 1020436603255 is 5523066340201.

It is a cyclic number.

It is not a de Polignac number, because 1020436603255 - 2⁵ = 1020436603223 is a prime.

It is a super-2 number, since 2×1020436603255² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1857484 + ... + 2343313.

It is an arithmetic number, because the mean of its divisors is an integer number (80592309630).

Almost surely, 2^{1020436603255} is an apocalyptic number.

1020436603255 is a deficient number, since it is larger than the sum of its proper divisors (269040350825).

1020436603255 is a wasteful number, since it uses less digits than its factorization.

1020436603255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4203378.

The product of its (nonzero) digits is 129600, while the sum is 37.

The spelling of 1020436603255 in words is "one trillion, twenty billion, four hundred thirty-six million, six hundred three thousand, two hundred fifty-five".