66151612 has 12 divisors (see below), whose sum is σ = 116286016. Its totient is φ = 32927040.

The previous prime is 66151609. The next prime is 66151621. The reversal of 66151612 is 21615166.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36189 + ... + 37972.

Almost surely, 2^66151612 is an apocalyptic number.

It is an amenable number.

66151612 is a deficient number, since it is larger than the sum of its proper divisors (50134404).

66151612 is a wasteful number, since it uses less digits than its factorization.

66151612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74388 (or 74386 counting only the distinct ones).

The product of its digits is 2160, while the sum is 28.

The square root of 66151612 is about 8133.3641256248. The cubic root of 66151612 is about 404.4332101049.

Adding to 66151612 its reverse (21615166), we get a palindrome (87766778).

The spelling of 66151612 in words is "sixty-six million, one hundred fifty-one thousand, six hundred twelve".