65648725146 has 24 divisors (see below), whose sum is σ = 142876755840. Its totient is φ = 21784777416.

The previous prime is 65648725133. The next prime is 65648725151. The reversal of 65648725146 is 64152784656.

65648725146 is a `hidden beast` number, since 6 + 56 + 4 + 8 + 72 + 514 + 6 = 666.

It is a super-2 number, since 2×65648725146² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65648725092 and 65648725101.

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 11 ways as a sum of consecutive naturals, for example, 8173456 + ... + 8181483.

It is an arithmetic number, because the mean of its divisors is an integer number (5953198160).

Almost surely, 2^65648725146 is an apocalyptic number.

65648725146 is an abundant number, since it is smaller than the sum of its proper divisors (77228030694).

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

65648725146 is a wasteful number, since it uses less digits than its factorization.

65648725146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16355170 (or 16355167 counting only the distinct ones).

The product of its digits is 9676800, while the sum is 54.

The spelling of 65648725146 in words is "sixty-five billion, six hundred forty-eight million, seven hundred twenty-five thousand, one hundred forty-six".