673355682066 has 32 divisors (see below), whose sum is σ = 1402589409408. Its totient is φ = 215309767680.

The previous prime is 673355682061. The next prime is 673355682071. The reversal of 673355682066 is 660286553376.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (673355682061) and next prime (673355682071).

It is a junction number, because it is equal to n+sod(n) for n = 673355681997 and 673355682015.

It is not an unprimeable number, because it can be changed into a prime (673355682061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21344335 + ... + 21375858.

It is an arithmetic number, because the mean of its divisors is an integer number (43830919044).

Almost surely, 2^673355682066 is an apocalyptic number.

673355682066 is an abundant number, since it is smaller than the sum of its proper divisors (729233727342).

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

673355682066 is a wasteful number, since it uses less digits than its factorization.

673355682066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42720306.

The product of its (nonzero) digits is 32659200, while the sum is 57.

The spelling of 673355682066 in words is "six hundred seventy-three billion, three hundred fifty-five million, six hundred eighty-two thousand, sixty-six".