66843374 has 16 divisors (see below), whose sum is σ = 108298512. Its totient is φ = 30759168.

The previous prime is 66843367. The next prime is 66843377. The reversal of 66843374 is 47334866.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66843377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5537 + ... + 12819.

It is an arithmetic number, because the mean of its divisors is an integer number (6768657).

Almost surely, 2^66843374 is an apocalyptic number.

66843374 is a deficient number, since it is larger than the sum of its proper divisors (41455138).

66843374 is a wasteful number, since it uses less digits than its factorization.

66843374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7651.

The product of its digits is 290304, while the sum is 41.

The square root of 66843374 is about 8175.7797181676. The cubic root of 66843374 is about 405.8380735359.

The spelling of 66843374 in words is "sixty-six million, eight hundred forty-three thousand, three hundred seventy-four".