64537545602801 has 2 divisors, whose sum is σ = 64537545602802. Its totient is φ = 64537545602800.

The previous prime is 64537545602773. The next prime is 64537545602809. The reversal of 64537545602801 is 10820654573546.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57091987493776 + 7445558109025 = 7555924^2 + 2728655^2 .

It is a cyclic number.

It is not a de Polignac number, because 64537545602801 - 2²⁶ = 64537478493937 is a prime.

It is not a weakly prime, because it can be changed into another prime (64537545602809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32268772801400 + 32268772801401.

It is an arithmetic number, because the mean of its divisors is an integer number (32268772801401).

Almost surely, 2^{64537545602801} is an apocalyptic number.

It is an amenable number.

64537545602801 is a deficient number, since it is larger than the sum of its proper divisors (1).

64537545602801 is an equidigital number, since it uses as much as digits as its factorization.

64537545602801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192000, while the sum is 56.

The spelling of 64537545602801 in words is "sixty-four trillion, five hundred thirty-seven billion, five hundred forty-five million, six hundred two thousand, eight hundred one".