64250666503 has 2 divisors, whose sum is σ = 64250666504. Its totient is φ = 64250666502.

The previous prime is 64250666477. The next prime is 64250666539. The reversal of 64250666503 is 30566605246.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64250666503 - 2⁵ = 64250666471 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64250666503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64250666603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32125333251 + 32125333252.

It is an arithmetic number, because the mean of its divisors is an integer number (32125333252).

Almost surely, 2^64250666503 is an apocalyptic number.

64250666503 is a deficient number, since it is larger than the sum of its proper divisors (1).

64250666503 is an equidigital number, since it uses as much as digits as its factorization.

64250666503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 777600, while the sum is 43.

The spelling of 64250666503 in words is "sixty-four billion, two hundred fifty million, six hundred sixty-six thousand, five hundred three".