65251430460 has 72 divisors (see below), whose sum is σ = 200153313360. Its totient is φ = 17204867328.

The previous prime is 65251430437. The next prime is 65251430501. The reversal of 65251430460 is 6403415256.

65251430460 is a `hidden beast` number, since 6 + 52 + 5 + 143 + 0 + 460 = 666.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2020542 + ... + 2052581.

It is an arithmetic number, because the mean of its divisors is an integer number (2779907130).

Almost surely, 2^65251430460 is an apocalyptic number.

65251430460 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

65251430460 is an abundant number, since it is smaller than the sum of its proper divisors (134901882900).

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

65251430460 is a wasteful number, since it uses less digits than its factorization.

65251430460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4073227 (or 4073222 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 65251430460 in words is "sixty-five billion, two hundred fifty-one million, four hundred thirty thousand, four hundred sixty".