65080020 has 48 divisors (see below), whose sum is σ = 184802688. Its totient is φ = 17109120.

The previous prime is 65080013. The next prime is 65080021. The reversal of 65080020 is 2008056.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65080021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3379 + ... + 11898.

It is an arithmetic number, because the mean of its divisors is an integer number (3850056).

Almost surely, 2^65080020 is an apocalyptic number.

65080020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

65080020 is an abundant number, since it is smaller than the sum of its proper divisors (119722668).

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

65080020 is a wasteful number, since it uses less digits than its factorization.

65080020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15360 (or 15358 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 65080020 is about 8067.2188516241. The cubic root of 65080020 is about 402.2375022882.

Adding to 65080020 its reverse (2008056), we get a palindrome (67088076).

The spelling of 65080020 in words is "sixty-five million, eighty thousand, twenty".