65612401425 has 36 divisors (see below), whose sum is σ = 124431996780. Its totient is φ = 32934850560.

The previous prime is 65612401411. The next prime is 65612401441. The reversal of 65612401425 is 52410421656.

65612401425 is a `hidden beast` number, since 6 + 5 + 612 + 4 + 0 + 14 + 25 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 4966443729 + 60645957696 = 70473^2 + 246264^2 .

It is not a de Polignac number, because 65612401425 - 2⁴ = 65612401409 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 65612401425.

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 35 ways as a sum of consecutive naturals, for example, 8572960 + ... + 8580609.

It is an arithmetic number, because the mean of its divisors is an integer number (3456444355).

Almost surely, 2^65612401425 is an apocalyptic number.

It is an amenable number.

65612401425 is a deficient number, since it is larger than the sum of its proper divisors (58819595355).

65612401425 is a wasteful number, since it uses less digits than its factorization.

65612401425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17153602 (or 17153594 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 65612401425 in words is "sixty-five billion, six hundred twelve million, four hundred one thousand, four hundred twenty-five".