64051505651017 has 2 divisors, whose sum is σ = 64051505651018. Its totient is φ = 64051505651016.

The previous prime is 64051505650943. The next prime is 64051505651033. The reversal of 64051505651017 is 71015650515046.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63903092711481 + 148412939536 = 7993941^2 + 385244^2 .

It is a cyclic number.

It is not a de Polignac number, because 64051505651017 - 2³¹ = 64049358167369 is a prime.

It is not a weakly prime, because it can be changed into another prime (64051505651047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32025752825508 + 32025752825509.

It is an arithmetic number, because the mean of its divisors is an integer number (32025752825509).

Almost surely, 2^{64051505651017} is an apocalyptic number.

It is an amenable number.

64051505651017 is a deficient number, since it is larger than the sum of its proper divisors (1).

64051505651017 is an equidigital number, since it uses as much as digits as its factorization.

64051505651017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 630000, while the sum is 46.

The spelling of 64051505651017 in words is "sixty-four trillion, fifty-one billion, five hundred five million, six hundred fifty-one thousand, seventeen".