417666520623 has 16 divisors (see below), whose sum is σ = 607546279296. Its totient is φ = 253118166240.

The previous prime is 417666520559. The next prime is 417666520679. The reversal of 417666520623 is 326025666714.

It is not a de Polignac number, because 417666520623 - 2⁶ = 417666520559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (417666720623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 343440 + ... + 976362.

It is an arithmetic number, because the mean of its divisors is an integer number (37971642456).

Almost surely, 2^417666520623 is an apocalyptic number.

417666520623 is a deficient number, since it is larger than the sum of its proper divisors (189879758673).

417666520623 is a wasteful number, since it uses less digits than its factorization.

417666520623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652934.

The product of its (nonzero) digits is 2177280, while the sum is 48.

The spelling of 417666520623 in words is "four hundred seventeen billion, six hundred sixty-six million, five hundred twenty thousand, six hundred twenty-three".