6564920073037 has 2 divisors, whose sum is σ = 6564920073038. Its totient is φ = 6564920073036.

The previous prime is 6564920072987. The next prime is 6564920073067. The reversal of 6564920073037 is 7303700294656.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5374102240521 + 1190817832516 = 2318211^2 + 1091246^2 .

It is a cyclic number.

It is not a de Polignac number, because 6564920073037 - 2¹⁹ = 6564919548749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6564920073067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3282460036518 + 3282460036519.

It is an arithmetic number, because the mean of its divisors is an integer number (3282460036519).

Almost surely, 2^{6564920073037} is an apocalyptic number.

It is an amenable number.

6564920073037 is a deficient number, since it is larger than the sum of its proper divisors (1).

6564920073037 is an equidigital number, since it uses as much as digits as its factorization.

6564920073037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5715360, while the sum is 52.

The spelling of 6564920073037 in words is "six trillion, five hundred sixty-four billion, nine hundred twenty million, seventy-three thousand, thirty-seven".