66767074 has 12 divisors (see below), whose sum is σ = 110083302. Its totient is φ = 30348560.

The previous prime is 66767069. The next prime is 66767111. The reversal of 66767074 is 47076766.

It can be written as a sum of positive squares in only one way, i.e., 53187849 + 13579225 = 7293^2 + 3685^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 66767074.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 137707 + ... + 138190.

Almost surely, 2^66767074 is an apocalyptic number.

66767074 is a deficient number, since it is larger than the sum of its proper divisors (43316228).

66767074 is a wasteful number, since it uses less digits than its factorization.

66767074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275921 (or 275910 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 43.

The square root of 66767074 is about 8171.1121642038. The cubic root of 66767074 is about 405.6835968205.

The spelling of 66767074 in words is "sixty-six million, seven hundred sixty-seven thousand, seventy-four".