66445702 has 8 divisors (see below), whose sum is σ = 100170000. Its totient is φ = 33055704.

The previous prime is 66445681. The next prime is 66445711. The reversal of 66445702 is 20754466.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 83077 + ... + 83872.

It is an arithmetic number, because the mean of its divisors is an integer number (12521250).

Almost surely, 2^66445702 is an apocalyptic number.

66445702 is a deficient number, since it is larger than the sum of its proper divisors (33724298).

66445702 is a wasteful number, since it uses less digits than its factorization.

66445702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167150.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 66445702 is about 8151.4233112997. The cubic root of 66445702 is about 405.0316532696.

The spelling of 66445702 in words is "sixty-six million, four hundred forty-five thousand, seven hundred two".