66601852 has 12 divisors (see below), whose sum is σ = 123409440. Its totient is φ = 31342016.

The previous prime is 66601831. The next prime is 66601853. The reversal of 66601852 is 25810666.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66601853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 489652 + ... + 489787.

It is an arithmetic number, because the mean of its divisors is an integer number (10284120).

Almost surely, 2^66601852 is an apocalyptic number.

It is an amenable number.

66601852 is a deficient number, since it is larger than the sum of its proper divisors (56807588).

66601852 is a wasteful number, since it uses less digits than its factorization.

66601852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979460 (or 979458 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 66601852 is about 8160.9957725758. The cubic root of 66601852 is about 405.3486851319.

The spelling of 66601852 in words is "sixty-six million, six hundred one thousand, eight hundred fifty-two".