64127511156125 has 16 divisors (see below), whose sum is σ = 80034258897216. Its totient is φ = 51300005736400.

The previous prime is 64127511156091. The next prime is 64127511156133. The reversal of 64127511156125 is 52165111572146.

It is not a de Polignac number, because 64127511156125 - 2¹⁰ = 64127511155101 is a prime.

It is a super-2 number, since 2×64127511156125² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64127511156125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6797747 + ... + 13208496.

It is an arithmetic number, because the mean of its divisors is an integer number (5002141181076).

Almost surely, 2^{64127511156125} is an apocalyptic number.

It is an amenable number.

64127511156125 is a deficient number, since it is larger than the sum of its proper divisors (15906747741091).

64127511156125 is a wasteful number, since it uses less digits than its factorization.

64127511156125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20031901 (or 20031891 counting only the distinct ones).

The product of its digits is 504000, while the sum is 47.

The spelling of 64127511156125 in words is "sixty-four trillion, one hundred twenty-seven billion, five hundred eleven million, one hundred fifty-six thousand, one hundred twenty-five".