511005335065 has 24 divisors (see below), whose sum is σ = 651570716160. Its totient is φ = 383667920928.

The previous prime is 511005335051. The next prime is 511005335081. The reversal of 511005335065 is 560533500115.

It is not a de Polignac number, because 511005335065 - 2¹⁷ = 511005203993 is a prime.

It is a super-2 number, since 2×511005335065² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 511005335065.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 852744 + ... + 1322566.

It is an arithmetic number, because the mean of its divisors is an integer number (27148779840).

Almost surely, 2^511005335065 is an apocalyptic number.

It is an amenable number.

511005335065 is a deficient number, since it is larger than the sum of its proper divisors (140565381095).

511005335065 is a wasteful number, since it uses less digits than its factorization.

511005335065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470061 (or 469954 counting only the distinct ones).

The product of its (nonzero) digits is 33750, while the sum is 34.

The spelling of 511005335065 in words is "five hundred eleven billion, five million, three hundred thirty-five thousand, sixty-five".