423903534166 has 64 divisors (see below), whose sum is σ = 774061516800. Its totient is φ = 173706936480.

The previous prime is 423903534161. The next prime is 423903534167. The reversal of 423903534166 is 661435309324.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423903534161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76694095 + ... + 76699621.

It is an arithmetic number, because the mean of its divisors is an integer number (12094711200).

Almost surely, 2^423903534166 is an apocalyptic number.

423903534166 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

423903534166 is a deficient number, since it is larger than the sum of its proper divisors (350157982634).

423903534166 is a wasteful number, since it uses less digits than its factorization.

423903534166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10434 (or 10420 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 46.

The spelling of 423903534166 in words is "four hundred twenty-three billion, nine hundred three million, five hundred thirty-four thousand, one hundred sixty-six".