65820496 has 40 divisors (see below), whose sum is σ = 146240640. Its totient is φ = 28113024.

The previous prime is 65820473. The next prime is 65820511. The reversal of 65820496 is 69402856.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39390 + ... + 41026.

It is an arithmetic number, because the mean of its divisors is an integer number (3656016).

Almost surely, 2^65820496 is an apocalyptic number.

It is an amenable number.

65820496 is an abundant number, since it is smaller than the sum of its proper divisors (80420144).

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

65820496 is a wasteful number, since it uses less digits than its factorization.

65820496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011 (or 2005 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 65820496 is about 8112.9831751335. The cubic root of 65820496 is about 403.7572963054.

The spelling of 65820496 in words is "sixty-five million, eight hundred twenty thousand, four hundred ninety-six".