564216441064631 has 2 divisors, whose sum is σ = 564216441064632. Its totient is φ = 564216441064630.

The previous prime is 564216441064583. The next prime is 564216441064649. The reversal of 564216441064631 is 136460144612465.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-564216441064631 is a prime.

It is a super-2 number, since 2×564216441064631² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (564216441064931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282108220532315 + 282108220532316.

It is an arithmetic number, because the mean of its divisors is an integer number (282108220532316).

Almost surely, 2^{564216441064631} is an apocalyptic number.

564216441064631 is a deficient number, since it is larger than the sum of its proper divisors (1).

564216441064631 is an equidigital number, since it uses as much as digits as its factorization.

564216441064631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9953280, while the sum is 53.

The spelling of 564216441064631 in words is "five hundred sixty-four trillion, two hundred sixteen billion, four hundred forty-one million, sixty-four thousand, six hundred thirty-one".