65223405792 has 240 divisors, whose sum is σ = 199051776000. Its totient is φ = 20928948480.

The previous prime is 65223405769. The next prime is 65223405803. The reversal of 65223405792 is 29750432256.

65223405792 is a `hidden beast` number, since 6 + 52 + 23 + 4 + 0 + 579 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 15988009 + ... + 15992087.

It is an arithmetic number, because the mean of its divisors is an integer number (829382400).

Almost surely, 2^65223405792 is an apocalyptic number.

65223405792 is a gapful number since it is divisible by the number (62) 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 65223405792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99525888000).

65223405792 is an abundant number, since it is smaller than the sum of its proper divisors (133828370208).

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

65223405792 is a wasteful number, since it uses less digits than its factorization.

65223405792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4331 (or 4314 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 45.

The spelling of 65223405792 in words is "sixty-five billion, two hundred twenty-three million, four hundred five thousand, seven hundred ninety-two".