65286421200 has 2160 divisors, whose sum is σ = 323062183808. Its totient is φ = 12317184000.

The previous prime is 65286421181. The next prime is 65286421229. The reversal of 65286421200 is 212468256.

It is a happy number.

65286421200 is a `hidden beast` number, since 6 + 5 + 2 + 8 + 642 + 1 + 2 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (2160).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 431 ways as a sum of consecutive naturals, for example, 1070269170 + ... + 1070269230.

Almost surely, 2^65286421200 is an apocalyptic number.

65286421200 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65286421200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161531091904).

65286421200 is an abundant number, since it is smaller than the sum of its proper divisors (257775762608).

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

65286421200 is a wasteful number, since it uses less digits than its factorization.

65286421200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

Adding to 65286421200 its reverse (212468256), we get a palindrome (65498889456).

The spelling of 65286421200 in words is "sixty-five billion, two hundred eighty-six million, four hundred twenty-one thousand, two hundred".