66272357 has 8 divisors (see below), whose sum is σ = 66830880. Its totient is φ = 65716560.

The previous prime is 66272351. The next prime is 66272383. The reversal of 66272357 is 75327266.

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

It is a cyclic number.

It is not a de Polignac number, because 66272357 - 2⁶ = 66272293 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 66272357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66272351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93119 + ... + 93827.

It is an arithmetic number, because the mean of its divisors is an integer number (8353860).

Almost surely, 2^66272357 is an apocalyptic number.

It is an amenable number.

66272357 is a deficient number, since it is larger than the sum of its proper divisors (558523).

66272357 is a wasteful number, since it uses less digits than its factorization.

66272357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363.

The product of its digits is 105840, while the sum is 38.

The square root of 66272357 is about 8140.7835617955. The cubic root of 66272357 is about 404.6791280559.

The spelling of 66272357 in words is "sixty-six million, two hundred seventy-two thousand, three hundred fifty-seven".