511020203355 has 12 divisors (see below), whose sum is σ = 885768352560. Its totient is φ = 272544108432.

The previous prime is 511020203341. The next prime is 511020203459. The reversal of 511020203355 is 553302020115.

It is a happy number.

511020203355 is a `hidden beast` number, since 5 + 1 + 102 + 0 + 203 + 355 = 666.

It is not a de Polignac number, because 511020203355 - 2¹⁰ = 511020202331 is a prime.

It is a super-2 number, since 2×511020203355² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5678002215 + ... + 5678002304.

It is an arithmetic number, because the mean of its divisors is an integer number (73814029380).

Almost surely, 2^511020203355 is an apocalyptic number.

511020203355 is a deficient number, since it is larger than the sum of its proper divisors (374748149205).

511020203355 is a wasteful number, since it uses less digits than its factorization.

511020203355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11356004530 (or 11356004527 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The spelling of 511020203355 in words is "five hundred eleven billion, twenty million, two hundred three thousand, three hundred fifty-five".