65516434 has 16 divisors (see below), whose sum is σ = 100840608. Its totient is φ = 31907232.

The previous prime is 65516431. The next prime is 65516459. The reversal of 65516434 is 43461556.

It is a self number, because there is not a number n which added to its sum of digits gives 65516434.

It is not an unprimeable number, because it can be changed into a prime (65516431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38469 + ... + 40135.

It is an arithmetic number, because the mean of its divisors is an integer number (6302538).

Almost surely, 2^65516434 is an apocalyptic number.

65516434 is a deficient number, since it is larger than the sum of its proper divisors (35324174).

65516434 is a wasteful number, since it uses less digits than its factorization.

65516434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2169.

The product of its digits is 43200, while the sum is 34.

The square root of 65516434 is about 8094.2222603534. Note that the first 4 decimals coincide. The cubic root of 65516434 is about 403.1346089010.

The spelling of 65516434 in words is "sixty-five million, five hundred sixteen thousand, four hundred thirty-four".