667433410440 has 32 divisors (see below), whose sum is σ = 2002300231680. Its totient is φ = 177982242752.

The previous prime is 667433410421. The next prime is 667433410471. The reversal of 667433410440 is 44014334766.

It is a junction number, because it is equal to n+sod(n) for n = 667433410392 and 667433410401.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2780972424 + ... + 2780972663.

It is an arithmetic number, because the mean of its divisors is an integer number (62571882240).

Almost surely, 2^667433410440 is an apocalyptic number.

667433410440 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

667433410440 is an abundant number, since it is smaller than the sum of its proper divisors (1334866821240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

667433410440 is a wasteful number, since it uses less digits than its factorization.

667433410440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5561945101 (or 5561945097 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 42.

The spelling of 667433410440 in words is "six hundred sixty-seven billion, four hundred thirty-three million, four hundred ten thousand, four hundred forty".