65130800 has 90 divisors (see below), whose sum is σ = 182078748. Its totient is φ = 22323840.

The previous prime is 65130797. The next prime is 65130811. The reversal of 65130800 is 803156.

It is a super-2 number, since 2×65130800² = 8484042217280000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 17939 + ... + 21261.

Almost surely, 2^65130800 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 65130800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91039374).

65130800 is an abundant number, since it is smaller than the sum of its proper divisors (116947948).

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

65130800 is a wasteful number, since it uses less digits than its factorization.

65130800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3355 (or 3337 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 65130800 is about 8070.3655431461. The cubic root of 65130800 is about 402.3420930682.

Adding to 65130800 its reverse (803156), we get a palindrome (65933956).

The spelling of 65130800 in words is "sixty-five million, one hundred thirty thousand, eight hundred".