66673734 has 32 divisors (see below), whose sum is σ = 140845824. Its totient is φ = 20998560.

The previous prime is 66673723. The next prime is 66673751. The reversal of 66673734 is 43737666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8544 + ... + 14364.

It is an arithmetic number, because the mean of its divisors is an integer number (4401432).

Almost surely, 2^66673734 is an apocalyptic number.

66673734 is an abundant number, since it is smaller than the sum of its proper divisors (74172090).

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

66673734 is a wasteful number, since it uses less digits than its factorization.

66673734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5932.

The product of its digits is 381024, while the sum is 42.

The square root of 66673734 is about 8165.3985818207. The cubic root of 66673734 is about 405.4944608482.

It can be divided in two parts, 6667 and 3734, that added together give a palindrome (10401).

The spelling of 66673734 in words is "sixty-six million, six hundred seventy-three thousand, seven hundred thirty-four".