616534065 has 32 divisors (see below), whose sum is σ = 1252642560. Its totient is φ = 281843712.

The previous prime is 616534063. The next prime is 616534069. The reversal of 616534065 is 560435616.

616534065 is a `hidden beast` number, since 61 + 6 + 534 + 0 + 65 = 666.

It is not a de Polignac number, because 616534065 - 2¹ = 616534063 is a prime.

It is a super-2 number, since 2×616534065² = 760228506610848450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (616534063) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 325264 + ... + 327153.

It is an arithmetic number, because the mean of its divisors is an integer number (39145080).

Almost surely, 2^616534065 is an apocalyptic number.

It is an amenable number.

616534065 is an abundant number, since it is smaller than the sum of its proper divisors (636108495).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

616534065 is a wasteful number, since it uses less digits than its factorization.

616534065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652438 (or 652432 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 616534065 is about 24830.1040070315. The cubic root of 616534065 is about 851.1099985171.

The spelling of 616534065 in words is "six hundred sixteen million, five hundred thirty-four thousand, sixty-five".