464531556666623 has 2 divisors, whose sum is σ = 464531556666624. Its totient is φ = 464531556666622.

The previous prime is 464531556666613. The next prime is 464531556666637. The reversal of 464531556666623 is 326666655135464.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 464531556666623 - 2⁸ = 464531556666367 is a prime.

It is a super-3 number, since 3×464531556666623³ (a number of 45 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (464531556666613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 232265778333311 + 232265778333312.

It is an arithmetic number, because the mean of its divisors is an integer number (232265778333312).

Almost surely, 2^{464531556666623} is an apocalyptic number.

464531556666623 is a deficient number, since it is larger than the sum of its proper divisors (1).

464531556666623 is an equidigital number, since it uses as much as digits as its factorization.

464531556666623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1679616000, while the sum is 68.

The spelling of 464531556666623 in words is "four hundred sixty-four trillion, five hundred thirty-one billion, five hundred fifty-six million, six hundred sixty-six thousand, six hundred twenty-three".