64212425611165 has 16 divisors (see below), whose sum is σ = 83539139166000. Its totient is φ = 47100162258432.

The previous prime is 64212425611151. The next prime is 64212425611219. The reversal of 64212425611165 is 56111652421246.

It can be written as a sum of positive squares in 8 ways, for example, as 16797054693241 + 47415370917924 = 4098421^2 + 6885882^2 .

It is a cyclic number.

It is not a de Polignac number, because 64212425611165 - 2⁵ = 64212425611133 is a prime.

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, 3315035520 + ... + 3315054889.

It is an arithmetic number, because the mean of its divisors is an integer number (5221196197875).

Almost surely, 2^{64212425611165} is an apocalyptic number.

64212425611165 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

64212425611165 is a deficient number, since it is larger than the sum of its proper divisors (19326713554835).

64212425611165 is a wasteful number, since it uses less digits than its factorization.

64212425611165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6630090576.

The product of its digits is 691200, while the sum is 46.

The spelling of 64212425611165 in words is "sixty-four trillion, two hundred twelve billion, four hundred twenty-five million, six hundred eleven thousand, one hundred sixty-five".