66412652 has 12 divisors (see below), whose sum is σ = 118127856. Its totient is φ = 32661840.

The previous prime is 66412637. The next prime is 66412663. The reversal of 66412652 is 25621466.

66412652 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

66412652 is strictly pandigital in base 9.

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, 135848 + ... + 136335.

It is an arithmetic number, because the mean of its divisors is an integer number (9843988).

Almost surely, 2^66412652 is an apocalyptic number.

It is an amenable number.

66412652 is a deficient number, since it is larger than the sum of its proper divisors (51715204).

66412652 is a wasteful number, since it uses less digits than its factorization.

66412652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272248 (or 272246 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 66412652 is about 8149.3958058251. The cubic root of 66412652 is about 404.9644880716.

The spelling of 66412652 in words is "sixty-six million, four hundred twelve thousand, six hundred fifty-two".