65812480 has 48 divisors (see below), whose sum is σ = 157935960. Its totient is φ = 26320896.

The previous prime is 65812459. The next prime is 65812501. The reversal of 65812480 is 8421856.

It is an interprime number because it is at equal distance from previous prime (65812459) and next prime (65812501).

It is a super-3 number, since 3×65812480³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7027 + ... + 13453.

Almost surely, 2^65812480 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65812480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78967980).

65812480 is an abundant number, since it is smaller than the sum of its proper divisors (92123480).

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

65812480 is an equidigital number, since it uses as much as digits as its factorization.

65812480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6454 (or 6434 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 65812480 is about 8112.4891371268. The cubic root of 65812480 is about 403.7409050084.

The spelling of 65812480 in words is "sixty-five million, eight hundred twelve thousand, four hundred eighty".