66251342 has 8 divisors (see below), whose sum is σ = 100860456. Its totient is φ = 32631192.

The previous prime is 66251299. The next prime is 66251357. The reversal of 66251342 is 24315266.

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, 247073 + ... + 247340.

It is an arithmetic number, because the mean of its divisors is an integer number (12607557).

Almost surely, 2^66251342 is an apocalyptic number.

66251342 is a deficient number, since it is larger than the sum of its proper divisors (34609114).

66251342 is a wasteful number, since it uses less digits than its factorization.

66251342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494482.

The product of its digits is 8640, while the sum is 29.

The square root of 66251342 is about 8139.4927360371. The cubic root of 66251342 is about 404.6363488775.

The spelling of 66251342 in words is "sixty-six million, two hundred fifty-one thousand, three hundred forty-two".